Tablet PC Buzz is back online again (and I wish them a healthy and working hard drive subsystem this time around), so let's see what's happening with the memory leak fix. (Yes, it's pretty sad that when a single site goes down, the pulse of the community is lost. Microsoft's own tablet newsgroups never really caught on among the community.)
There is no indication of problems in this short thread (apart from the usual MVP snarky comments about The Register and how the problem isn't really a problem after all). A possible issue with screen rotation on a TC4200, which was however quickly remedied. And then the one TC1000 user whom I did remember correctly, and whose tablet died after the update. However, that could just be a corrupted hard drive happening at an inopportune moment. So the jury is still out until a more representative sample can be gathered.
The sad part is that many "hard core" tablet folks have probably moved beyond the first-gen TC1000 by now, and many of the large initial TC1000 deployments were in educational/corporate settings, where they won't rush to apply untested patches anyway, so even if there is an impact on that model, it could take a while before it is fully felt.