In a word: Motoblur. I'll admit that when Motorola first rolled out their social-network-heavy Android skin on the Cliq, I was excited to see a phone maker doing something different with this OS and give it a little extra flava. A bubbly interface like that is fine for the relatively underpowered Cliq, but not-so-much for a behemoth like the Driod X that can handle more customization in apps and widgets. And even though the X has a dialed-down version of 'blur that doesn't immediately take over the home screen, it still keeps a ton of stuff running all the time that you really don't need. Each and every time I booted up, I had to kill each 'blur update task manually to keep it from zapping both battery life and the overall phone speed provided by its one-gigahertz processor. What's more, the Android Market has ample (ahem, better) options to get all those feeds from Twitter, Facebook, and the like.