A few more observations:
1. It looks like the launch is such a mess. I would give it till Jan till the mess is fixed before recommending the phone to people.
2. By the time the fault is fixed, hopefully the phone will be cheaper and more widely available ( eg free on a £30/m 18 month contract with decent data allowance) and available on network shops?
3. For most of us here, the new features of ICS will have to be balanced by the lack of proprietary items such as codec support. The Galaxy S and Galaxy s2 have excellent video playback options natively, both the Nexus s and Galaxy Nexus does not.