AT&T used the prelude to CTIA to reveal three of its promised smartphones, including crucial news for Palm. Both the Pre Plus and Pixi Plus are the first GSM webOS phones in the US and the only ones that can handle simultaneous voice and data. While they switch to HSPA for 3G, the two otherwise share the upgrades that were launched early this year: the Pre Plus has double the RAM and 16GB of internal storage, while the Pixi Plus adds Wi-Fi to the existing 8GB, entry-level phone.