hey there,
i hope to shed some light on the broken push notifications on android 4.0.3/4.0.4 (ICS)
first of all, i made a logcat: http://dl.dropbox.com/u/16186798/cm9/lo ... e_info.zip (will be deleted in a couple of days)
it contains the following: logcat start, switching to im+, turning on push notifications, switchting to launcher, waiting about 10 minutes until push notifcations bail out - namely the status bar im+ notification icon disappears, stopping log.
i have the same issue on htc desire hd with an aokp ics build and on samsung galaxy tab with cyanogenmod 9. i had no problems with push services on android 3.2 honeycomb or on 2.3.7 gingerbread.
i did hope, the upgrade to 4.0.4 might fix the issue, but it didnt. other push notifications like all the google stuff works without problems. of course, background transfer is enabled.
as an (semi inactive) cyanogenmod developer, i can offer any help you might need. feel free to contact me via provided email address of this forum account - its a real mail address.
since non-push has a huge impact on my mobile data plan and also on battery life and cpu usage, i would love to help solving this issue.
sincerely
sven