I Installed Mageia-2 rc very shortly after it was made available absolutely AOK with no apparent hitches of any kind.
Some Points.
1. Yawp, the weather plasmoid seems to be a bit screwed up. When mounted it is initially near totally transparent. It does not set-up automatically responding to saved settings in home hidden files as it does in Mageia-1.
Also in Mageia-1 it was a default install but not in this one which is a bit of a disappointment but that is all.
2. Audacious, even though <skins> is installed it cannot be set for random skin selection when the XMMS style is selected, also the xmms style cannot be made double size as can be done in Mageia-1 with a setting choice titled <scale> which I feel is a need for a large monitor (24 inch +).
The following are not complaints or criticisms, just observations which might inspire the Mageia team to bring them on board.
3. Mahjongg-3D is not available.
4. The 2 packages, apcupsd and gapcmon which are for APC UPSs, that the great Adam Williamson introduced into Mandriva for APC Backups outfitted with USB monitoring haven't been ported to Mageia yet. I feel that they are far superior to the current back-ups alternative applications offered, are much more configurable and supply much more detailed data.
I copied the Mahjongg-3D, gapcmon and apcupsd from Mandriva-2011 and installed them AOK into my Mageia-1.
Neither the gapcmon or the apcupsd appeared in the Menu. I started them up using Konsole. After opening gapcmon I ticked the options of <Use TrayIcon> so the application did not shut down when I closed Konsole.
Mahjongg-3D didn't seem to have any dependencys and it did appear in the Menu.
I hope these 3 packages can be made part of Mageia-1 and 2 for others as well as myself.
I have noticed that a bug report notice appears at the bottom of the screen once my account opens whenever Mageia-2-rc is rebooted but nothing seems to be not working correctly so I just close the notice.
I suspect that it has already been reported as a bug so no need for me to add to the pile.

Mageia-2-rc seems to be pretty solid at this stage (with all updates) with no noticeable problems which sure bodes extremely well for the final release in a weeks time. I am really looking forward to it. Great going Mageia team.
Cheers. John.