I've been using S2P for awhile and it just keeps getting better. Gotta love being able to surf to ppcgeeks with opera mini, download the zip and install, rather than having to wait till I get home and use activesync
I didnt notice any sluggishness on my Sprint Touch but I also recently changed/added a number of registry settings per that thread in the vogue section that seems to have woke it up quite a bit. I donated to A_C for both S2P and S2U2 awhile ago and I couldnt be happier.