The most appreciated facebook app “fMobi” for Symbian/Qt platform has now been available for MeeGo/Harmattan platform and is available to download. You can try it if you have got Nokia N9
How to Install
You will need to turn on installations from non-store sources
Go to Settings > Applications > Installations and turn on “Allow installations from non-Store sources”
Check this post with screen shots how to enable installations from non-store sources
Download for MeeGo
Download the fMobi for Nokia N9, Nokia N950
or Visit the developer page here
Download for Symbian
fMobi is also available for Symbian devices you can try or download from Nokia Store via your devices