I had a touch pro that had the loose screen issue as far as the sliding part. I took it in to my local sprint service store, and they said it was natural for the phone and even if they fixed it or replaced the screen it would do it again. They did nothing for me and I pay the $7 a month.
I went ahead and wrote sprint a nice little email
although they did not replace my phone with a TP2 they let me get a new phone at the online discounted cost (After rebates) so I bought the TP2 and they let me keep my TP1
I am happy now I really like the TP2.
My sprint store is not replacing the TP1 with TP2 as of right now.