Day 28) weechat-ncurses, ejabberd, and pyAIMt did help improve daily use, but lack of notifications/browser GPS support/music finally has stopped me from carrying Galaxy Nexus as a daily driver. Not sure if it's the unpolished Ubuntu Touch OS or the Galaxy Nexus bar/touchscreen-only form factor... but going back to the n900 with keyboard after 4+ weeks just physically feels like using/typing on a more solid/professional device.

Aside from waiting for major daily-use features (audio, headphones, speakerphone,location services [blueprints.launchpad.net]) to arrive ...(each day now they're just barely hanging onto their timetable [ubuntu.com]) the other big item that has yet to land is Mir [launchpad.net].

without Mir there is no hope for xMir/x11/qt4 support ... leaving the OS stuck with Android Surfaceflinger for display and their special Ubuntu-port of qmlscene as the only thing for diplaying GUI UI.

Mir version 0.0.8 [launchpad.net] is the next release and is rumored to be the first version ready for inclusion on the device. Also supposed to address a number of major issues (including a lack of a passthrough mode [bugs.launchpad.net] for fullscreen apps/games).

Until Mir/xMir lands, everyone's pretty much saying write your UI in QML, hook it into D-bus with a little c++ and then call into your python application logic via D-bus[lists.launchpad.net].
Not as gross as maintaining your entire application in c++ and relying on SDL or something for a cross platform UI... but not exactly nice.

interesting:
fMMS on n900 is acceptable but it looks like ofono may be able to provide Ubuntu Touch with MMS working out of the box. Currently marked inprogress [blueprints.launchpad.net]