Asus Transformer -
http://www.asus.com/Eee/Eee_Pad/Eee_Pad_Transformer_TF101/. My work bought me one (with everyone else getting iPad2's) and I am quite content on being able to do more productive things with mine.
The special part of this tablet is that it can be purchased with a detachable dock (see picture).
The thing with 10" tablets, 7" tablets, 4.x" phones, netbooks, laptops, is that most the time you can only do so many things conveniently on each formfactor. While any tablet can do browsing and media, not every one will be great for doing documents or random other misc tasks that would be close to a laptop replacement. Personally, I start to lose it when I have to type on a touchscreen for more than a sentence at a time. With the Transformer dock, you can basically switch between a fairly light tablet for viewing/browsing/reading, and what is basically a netbook with a physical keyboard. The dock extends the battery life to about 12+ hours of continual use, and it's got USB slots. You can grab the 16GB version and throw in a (16 or 32GB) microSD card for cheap for even more storage.
And to do literally "everything else" you can do with a real computer, just grab a remote desktop app (Splashtop HD for example) and you can just work heavier processing tasks on your desktop machine.
I was actually looking at this exact tablet.
It was recommended to me because it comes with a detachable keyboard which literally takes up as little room as a netbook would.