I am wondering is there any mobile phone available in this world that enable us to compile or interpret any code we type in?
Let say I want to code a simple program like in http://projecteuler.net, and I cannot find any computer nearby. I really want to code while going home using public transportation or waiting the bus, using my mobile phone.
The keypad will not be an issue, since QWERTY is good enough to type the code. The language could be pascal, php, or other lightweight language.
The IDE doesn't have to be sophisticated, text editor will do.
There are lots of Python interpreters available for mobile devices. Check out Python for Mobile Devices for starters.