There are dozens of other mind mapping apps out there, including options for WebOS , Windows Mobile, and Symbian. I can't possibly cover them all here, but I've tried plenty of the available alternatives and the ones I've listed here are my best suggestions for anyone looking to take their digital mind maps on the road. Search your platforms app marketplace, and you'll find no shortage of competing choices, ranging from simple (and some not-simple-enough) freebies to powerfully complex tools that come with price tags approaching $50, like and for iOS.