A few goods, a few bads
I have to disagree about the speakers: I think they are very clear and resonant considering the size of the device. On the other hand I agree that the browser is unacceptably jerky and slow....I just can't understand why a device more powerful than the iPad can be so poor in comparison with regards to its web performance. Another gripe is that the browser defaults to mobile sites on any browser that uses the built in webkit. Whilst it might be true that a flash of an updated ROM will fix this, I still think it is ridiculous that I should have to void my warranty to get FULL web sites on the phone - it is after all a TABLET with more than enough power to view full sites. Mobile sites look downright ugly on such a high resolution, large screen anyway.
Another annoyance is that YouTube videos look pretty poor compared to the same ones on the iPad's built in YouTube app. It seems that Samsung were not allowed to tweak Google's app to allow HD streaming. The result is acceptable but certainly not stunning.
On the flip side, I do really enjoy using the device on the whole: I love the build quality, the gorgeous screen, the tactile quality which really makes using apps a dream. Most apps seem to scale excellently and the device fits nicely into a jacket pocket. I even like popping my SIM in and texting on the SGT - handcent is fantastic with such a large screen.
I just hope that Samsung treat this device as their baby and don't fob us off. I think there is developer interest in this device and I hope my enjoyment of the device increases month-by-month....