Hiphone... Whats the opinion?

Looking for a cheap phone guys for work as my trusty Xperia 8 battery doesn't last long anymore :(

Want an I-phone but can't afford a proper one..

Have a budget of around €100..

Was looking at an Air-Phone or a Hiphone..

Obviously they are very restricted with no apps ect..

http://saramobi.com/hiphone4.html

Any advice?