Just an FYI: Sprint is still replacing Touch Pro's with Touch Pro 2's.
Since the TP2 is likely the last SERO-compatible phone, I wanted another "back-up" ... so I ebayed a TP for $75, got it home, activated it, and sure enough, I had the random lock-ups. So I dropped by the Sprint Store & my new TP2 should be there tomorrow or Tuesday.
