gottaTxt is a next-gen texting system which lets users add 'geotags' to texts. Recipients can see all geotags on an interactive map. gottaTxt also lets users 'blacklist' numbers, set 'auto-responses' (when phone is dead or user is unavailable), and more.
gottaTxt uses its own servers when sender/recipient are both gottaTxt users, but automatically (and transparently) falls back to SMS when the recipient isn't a user. Nearly all gottaTxt benefits are available, even when friends don't use it.