The PR 1.3 update is quite close now, and with that you can easily dual boot between Maemo and Meego on your N900. There is also a possibility of developing applications supporting both operating systems, based on Qt and Qt Mobility APIs on the Maemo side. It means that you can develop once in PC with Qt Creator, and test your applications on both Maemo and MeeGo, directly on your N900 device!

Via : meego.com