Lenovo w520 here. Running kubuntu 11.04. I have no issues with it now, but there was an issue until recently with Intel's speedstep and power management. The

Lenovo w520 here. Running kubuntu 11.04. I have no issues with it now, but there was an issue until recently with Intel's speedstep and power management. They just released a new bios that seems to have fixed it. Here's a long thread on it: http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/W520-Speedstep-not-working-properly-on-battery-BIOS-v1-26/td-p/504029/page/14 http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/W520-S... Other than that, it's a great dev laptop. Also keyboard and screen are great!