Heavy use doing what? I have iPad 1 and use it for loads of emails, novel writing etcet and I use the screen keypad. Okay just reread the q and no for net use you won't need a keyboard IMO. Keep in mind that the iPad doesn't do flash, so some very few websites you won't be able to use. For the difference of 100 quid I would go for a two and get the biggest memory you can afford. Can't answer about use abroad or service providers, mine is O2 which I am happy with...all the data I can use costs 10.22 a month.