I have discovered probably the best iOS application out there: PlainText. Its versatility spawns from its Spartan simplicity and elegant design.

A free download from the App Store, PlainText uses your Dropbox account to store and sync plain text files between your computer and mobile devices, anything that works with Dropbox. Because it allows text input from mobile devices, you can use it for everything from to-do lists/reminders, short notes, expenses list, and even writing blog posts on the go (which I’m doing right now). Since it has a local cache and no bells and whistles to drain the battery, it is the perfect companion for the mobile blogger.

Create a stack from your PlainText folder and have every file only a click away.

If you’re proficient enough with the onscreen iPhone keyboard you could easily use this application to take class notes, keep track of homework and anything you can think of. Why carry your MacBook on campus when you could just pack your iPhone or iPod touch? Add a stand, an Apple Bluetooth keyboard and a charger for those long sessions and you’ve got yourself nothing less than a workhorse for modular mobile computing.

Revise your notes on the bus, or write your next novel, PlainText is a stroke of genius that’s there whenever you need it. Get it from the AppStore.