Installed MobileTerminal on an iphone 3G, running iOS 4.2.1 but as soon as I tap the icon, it briefly opens, then closes. Is it not working with the latest iOS? If not, is there an alternative terminal program?
You need to install a 4.X version of mobile terminal. I forget the exact repo, one I think is podzombie and there are a few more that have the fixed version. A quick google should find you a repo with it on it.