Lenovo updated it's popular N5901 wireless keyboard+trackball controller. If you've tried the N5901, chances are you like it. Well, the N5902 is backlit and has a few other improvements. Right now you can buy one and save $30 using this coupon code: USP1O26678. I just bought one directly from Lenovo.

Though I'd share my find. If you need a good wireless keyboard, definitely check it out.