Love your app, very handy. :good: (I found it via Lifehacker)
Just want you to know- when I toggle it to 3G then tap on the icon to open the settings, I get a "security error" popup. This is on my HTC Sensation XE, S-OFF, rooted and running jellybean. Also, if I change setting some other way (toggles, settings) the 2G/3G does not update to reflect this- all the others work fine.
Also, you should add a way to customize some options. For example, 2G->3G->4G, there is no 4G in my country (yet) so it would be nice to be able to disable that so it will only cycle between 2 and 3G.