The Zio is one of the first phones to feature , which organizes apps into themed packets for users who need a little help swimming through the available at the Android Market. The helpful little pack also contains widgets, ringtones, and wallpapers. Pressing the “iD” button on the Android home page brings up themed app packs like 'Small Business', 'Entertainment', and 'Auto Enthusiast'.

The Zio’s 3.5-inch WVGA touchscreen (480 by 800 pixels) is less responsive than the touchscreens on , and though screen has capacitive touch to confirm your touches, communicating commands to Android takes a little more work.

For this reason, browsing the Web was a tiresome task--and I would be reluctant to open the Web browser on this phone for any reason. The trackball at the bottom of the phone helped with navigation, but touchscreen’s lack of sensitivity was a significant negative, as was the Zio’s relatively slow 600MHz processor.