[namtih]

I've tested some skins today and want to share the information with you.
Some words about the current situation:
1. XBMC Frodo
The XBMC crew is heavily working on the new XBMC version. As far as I can see it will bring a new skin engine, so that most of the skins has to be adapted to work properly. Some skin developer already began to work on it, some not yet.
So it will still need some time until more skins will be officially be available for the new XBMC version.
Until then we have to live for example with Confluence or just try another skin and see if it's working.
2. Raspberry hardware
The hardware of the Raspberry is limited. So some skins will be very slow and not really usable.

Installation methods
1. Official
Just browse to the official/standard Addon directory and select one of the available skins, which are already Frodo compatible.
2. 3rd party Repo
Download the zip-file with the repo information, install via Addon manager -> Install zip and then select the skin through the new 3rd party repository.
3. Github
Open the github repository with your web browser and click on the button ZIP button on the upper part. Download the zip file and transfer it to...
/home/xbian/.xbmc/addons
Open this path in the command line and unzip the transfered file...
unzip <filename.zip>
Restart XBMC
Activate the new skin via System -> Appearance.

Test method
I didn't do a full functionality test. Just intalled it, browsed through the menus and watched the CPU consumption. The CPU number below will be from the Home menu and just waiting for about 1 minute. So it's far away from being accurate, but perhaps a first impression if the skin will be usable on raspberry hardware.

Skins
http://forum.xbmc.org/forumdisplay.php?fid=67

Aeon Nox 4.0
http://forum.xbmc.org/showthread.php?tid=141458
Method: 3
https://github.com/BigNoid/Aeon-Nox
CPU: 55%

Aeon MQ 4
http://forum.xbmc.org/showthread.php?tid=135045
Method: 3, but just download the provided zip-file from here:
http://www.marcosqui.com.br/downloads_english.html
CPU: 98%
- Feature presentation after first start => very, very slow

Alaska Revisited
http://forum.xbmc.org/showthread.php?tid=115013
Method: 3, but open the link above and use the provided mediafire link "The new version : 2.73 (~40 Mo)"
CPU: 15%

Amber (WIP)
http://forum.xbmc.org/showthread.php?tid=163360
Method: 2 or 3, see the 1st post of the xbmc thread
CPU: 20%

Cirrus Extended v2
http://forum.xbmc.org/showthread.php?tid=102066
Method: 3, use the zip file provided here
http://xbmc-repository-butchabay.googlecode.com/svn/trunk/skin.cirrusextended.2
CPU: 25%

Cirrus Extended light
http://forum.xbmc.org/showthread.php?tid=126584
Method: 3, use the zip file provided here
http://xbmc-repository-butchabay.googlecode.com/svn/trunk/skin.cirrus.extended.light/
CPU: 20%

Cirrus Vintage
http://forum.xbmc.org/showthread.php?tid=131702
Method: 3, use the zip file provided here
http://xbmc-repository-butchabay.googlecode.com/svn/trunk/skin.cirrus.vintage
CPU: 25%

Confluence
Method: 1 (Standard theme)
CPU: 15%

Fusion Migma v2
http://forum.xbmc.org/showthread.php?tid=120867
Method: 3, use the zip file provided here
http://xbmc-repository-butchabay.googlecode.com/svn/trunk/skin.fusionmigma.2/
CPU: 93%

XBMC Immersive (WIP)
http://forum.xbmc.org/showthread.php?tid=139712
Method: 3, but use the zip file provided in the 1st post of the xbmc thread below the slideshow
CPU: 55%

Metropolis 2.0
http://forum.xbmc.org/showthread.php?tid=144534
Method: 3
https://github.com/jingai/Metropolis
CPU: 35%

metroTV (WIP)
http://forum.xbmc.org/showthread.php?tid=138997
Method: 3, see download link in the xbmc thread above the slideshow
CPU: 45% (all sub-categories ~95% as nearly every page has any scrolling element (like plots, casts,...) due the scrolling bug on the Rpi)

Modded Confluence Vol. 2
http://forum.xbmc.org/showthread.php?tid=147628
Method: 3
https://github.com/mad-max/skin.moddedconfluence-Vol.2
CPU: 45%

Night 2.0
http://forum.xbmc.org/showthread.php?tid=103055
Method: 3
https://github.com/bartowski/skin.night
CPU: 75%

Quartz Reloaded
http://forum.xbmc.org/showthread.php?tid=135465
Method: 3
https://github.com/pecinko/quartz.reloaded
CPU: 40%

Rapier 4.00
http://forum.xbmc.org/showthread.php?tid=100882
Method: 3
https://github.com/scarfa/skin.rapier
CPU: 45%

ReAlaska: ReFocus meets Alaska
Dark: http://forum.xbmc.org/showthread.php?tid=134006
Light: http://forum.xbmc.org/showthread.php?tid=134075
Method: 3, but just use the zip download provided in the links above
CPU: 25%

reFocus BIG
http://forum.xbmc.org/showthread.php?tid=132897
Method: 3
https://github.com/paulsalem/skin-refocusbig
CPU: 35%

Simple Confluence mod
http://forum.xbmc.org/showthread.php?tid=145080
Method: 3, but use the Download link from the link above
CPU: 17%

The Serenity
http://forum.xbmc.org/showthread.php?tid=51260
I wasn't able to install it.

Vinci
http://forum.xbmc.org/showthread.php?tid=129097
After install just a black screen.

Xperience1080 2.0
http://forum.xbmc.org/showthread.php?tid=146690
Method: 2
http://xperience1080.googlecode.com/svn/trunk/frodo/repository.blacks-2.0.zip
CPU: 93%

Xperience More
http://forum.xbmc.org/showthread.php?tid=103818
Method: 3
https://github.com/Nessus85100/Xperience.More
CPU: 65%