I'm trying out the trial version of Lightroom 2.6, which I like quite a bit more than Silkypix, that came with my G1, but I didn't see a way to correct for lens distortion.

I did come across this plug-in for Lightroom, that does correct the problem.

http://epaperpress.com/ptlens/index.html

Wondering if anyone has tried it, or what other options you've found to solve this problem.