Various web sites are reporting that Palm Pre demo or "advocate" units are showing up in retail stores. These units are for Sprint employees to study and test before the Pre goes on sale.

Some Sprint employees have been leaking details on the Pre. According to Pre Central:

First off, the phone is as small as we've reported, it "feels like pure sex in the hand." Ahem. We have corroboration that the keyboard does in fact feel on the small side: "definitely a cross between a Centro and a Treo Pro keyboard." The webOS is "amazing" and "responsive."