If you thought the (admittedly weak) Liquid e was all Acer had in store for Mobile World Congress, you'd be badly mistaken. We've got a foursome of other smartphones on tap, so we won't waste any time breaking 'em down. Up first is the neoTouch P300 and neoTouch P400, each of which ship with Windows Mobile 6.5.3. The P300 gets a luscious 3.2-inch WQVGA touch panel, slide-out QWERTY keyboard (backlit, no less!), WiFi and a March ship date, while the May-bound P400 packs a 3.2-inch HVGA touchscreen, 600MHz Qualcomm 7227 CPU, WiFi and a 3.2 megapixel camera. Moving on, there's the beTouch E110 (shipping in March in black and dark blue), complete with a 2.8-inch touch panel, Android, 3 megapixel camera, FM tuner and a 1,500mAh battery. Finally, the beTouch E400 touts Android 2.1, the same 600MHz power plant as on the P400, a 3.2-inch HVGA resistive touchscreen, smart LED lighting (acts as a message indicator) and an April ship date. Pricing remains a mystery on the whole lot, but we're hoping to learn more as we dig our heels in at the show.