Some apps and other stuff to try out. Feel free to add your stuff, after you have verified it on current MeeGo 1.2 image on N900.
CacheMe
A online geocaching application using Qt and QtMobility: http://build.pub.meego.com/package/show?package=cacheme&project=home%3Aharbaum
Beware: This is actually intested on MeeGo, but works nicely in Symbian, Maemo5, Windows and Desktop Linux.
MeeGo apps beta http://apps-beta.meego.com/repositories/
Peregrine communication client (contact @IRC: jbos)
http://www.peregrine-communicator.org/peregrine/downloads
Gluon (contact @IRC: #gluon (or/and 'djszapi'))
Website: http://gluon.gamingfreedom.org/
Repository: https://projects.kde.org/projects/playground/games/gluon/repository
XBMC http://www.cybercomchannel.com/using-xbmc-meego-12
Marble Desktop Globe
Website: http://edu.kde.org/marble/
Source: git://anongit.kde.org/marble
Repository (RPM): http://repo.pub.meego.com/home:/mdfe/Trunk/
Add Marble to your MeeGo