I too now have an i550, and I was thinking the same thing.

I'd be happy to email the voice app, in exchange for the latest Samsung web browser (the version 1.0 that's built-in on mine is a little buggy).

FileZ to the rescue.

And like i330 is asking, I'd be interested in getting my hands on a back-up stylus and standard battery (my battery sticker says it's a 3.7V Li-ion).