While Sony just launched their Tablet S at IFA, many of my colleagues have been busy testing it.
LAPTOP Magazine has their review up.
Engadget didn't get the full review done but here is their preview.
"Thisismynext.com soon to be The Verge" liked the hardware like others but were underwhelmed by the software.
UPDATE: Slashgear has their review up now too
We should get plenty of hands on reports soon from IFA too so keep your eyes at the internets.