Who needs a life when your work lets you test out cutting-edge mobile phones like this? Not us, buddy. The P300 and P400 both run Windows Mobile 6.5.3, the last gasp of Microsoft's current mobile operating system. With Windows Phone 7 series also revealed here in Barcelona, WinMo 6.5.3 is something of a lame duck. Still, the list of options is presented in large, clear type, and the scrolling action is bouncy and responsive.
The P400 is entirely touchscreen-based, while the P300 packs a slide-out Qwerty keyboard. The 81mm (3.2-inch) screen could be bigger: the large round home button and the pointlessly large Acer logo cut into the screen size, with onscreen real estate further reduced by a taskbar that duplicates the function of the physical Windows button.
Built-in apps include Windows Media Player for your music, video and pictures, and a dedicated YouTube player. Internet Explorer 6 Mobile supports Flash.
Both phones offer 3G, Wi-Fi, Bluetooth and GPS, although we weren't able to test this out in the Acer stand. They sync with other Acer devices via the cloud, so you can marry your laptop, desktop and phone.
Click 'Continue' to see more of the P300 and P400.