One unexpected result from the test Piecyk’s tests suggest that older iPhones running on the new iPhone operating system may actually be a bit slower. And yes, I checked with Piecyk–the tests were performed using AT&T (T)’s network, with Wi-Fi turned off, in midtown Manhattan.

But wait! That’s not all! Piecyk also puts the Palm Pre through its paces against the new iPhone and says (pretty hard to tell on this clip) that the Palm (PALM) phone offers a better version of clips from Google’s (GOOG) YouTube. Piecyk’s thesis: Sprint (S) is sending a less compressed version of the YouTube files to the Pre then AT&T sends to the iPhone.