I wrote about Thinking Space a couple of weeks ago when I covered mobile mind mapping apps, and gave it a pretty strong thumbs up for Android users. But that was before I tried it on a tablet, which is an experience so phenomenally superior to what the app can do on phones that it practically warrants a complete reappraisal on this platform. If you use mind mapping frequently, and you've been thinking of getting an Android tablet, you're going to love this combination.
Of course, the Android Market still has a pretty slim selection of tablet apps, and there's plenty of great stuff out there that may take a while to migrate into a tablet-friendly form. Non-tablet apps generally work very well on Honeycomb, in my experience, but it's usually pretty obvious that you're looking at a phone-centric menu that isn't taking full advantage of all the touchable pixels on offer. I'll keep my eye on new productivity apps for Android slates as they emerge, and bring you any gems I find.