A couple of things to know about this tablet. There are more then one version of it so when you are looking at custom ROM's, recoveries etc make sure it is for the right model.
GT-7310 is the wifi only tegra 2 model
GT-7300 is the 3G tegra 2 model, popular overseas
i957 is the AT&T LTE Snapdragon model
GT-7320 is an LTE version available overseas
It is a great tablet. THe 8.9 is the perfect size for me. & is way too small and 10 is too hard for me to type on. It has all of the specs the 10.1 and the 7.0 has your not cutting anything out when compared to the original galaxy tabs.
We have been told and official ICS would be released withint the 2nd quarter which means any time between now and the end of june.
If you are not content with waiting that long. The 8.9 has a very much alive and well developement community with three different ICS ports (AOSP, AOKP, and CM9) None of these ROM's have a working camera or working HDMI out but everything else is fully functional and smooth as butter
Galaxy Tab 8.9 Android Development - xda-developers