if you really need to access a command line interface, chances are you have the technical knowledge to jailbreak your ipad in the first place. so it's really a moot point. while it isn't officially supported by apple, neither are any of the operations you're likely to do at the unix prompt on your ipad.
yes the iOS is a closed system, but don't regard a closed system as limited either. there is very little i have found that my iPad can't do that my eeePC 1000HA can. the only obvious task is Flash media. but app-to-app comparison, there is pretty much an app for the ipad for any task i could do on my netbook.
you also have to remember, apple has never marketed this as a general-purpose computer platform, and it isn't meant to be (even though app developers have done an excellent job of turning it into one, as i pointed out). it's meant to be a media consumption device allowing you to watch video (which apple sells), listen to music (which apple sells), read books (which apple sells) and surf the web (which apple doesn't sell, lol). netbooks are meant to be small-form-factor laptops with scaled down capabilities. you're really comparing apples to tangerines. small, round, tasty, but two different things.
|