Hey, I just created a thread in the Pre 3 section titled "I can switch app catalogs". I did this on my Pre 3 and it worked and then tried it on my Pre 2 and it worked for it too.
The Pre 3 account was created with Impostah for US access....and I have switched it to my Australian account that was created on my Pre 2. I did also have a TouchPad on that account.....however, I then grabbed my Pre 2 and erased it, then logged in to my US profile (no TouchPad was on the account) and it now has US paid app catalog.
So, it seems that I can switch between the two profiles....on the phones, not just the TouchPad.
Has anyone else done this yet? I tried it a few weeks ago with my Pre 2 and it didn't work, but it does now.