OpenMoko has managed to sell more than a smattering of its $99 WikiReaders (you know, considering just how limited in scope this thing is), but evidently there's a huge demand out there for improvements. The company has just rolled out its Spring 2010 update, which adds math equations, fluid scrolling, and enhanced navigation. Reportedly, the latter comes in the form of an improved touchscreen keypad, which is said to make "finding Wikipedia entries easier and faster and makes enjoying one of the largest reference archives known to mankind even better." We won't bother pointing out the gross exaggerations in that there comment, but at any rate, existing users can download the update today free of charge. Don't all hurry over at once and crash the servers, okay?