u cant
No u cant get blackberry messenger on a iphone
Probably not.
Is there enough internal memory on your iPhone??
no you cant
No you jolly well cant .
You probably can't rent an iphone but you can borrow it from your friend or something.
yes
You cant
You cant without jailbreaking it.
You cant strangly....
Your iPhone probably needs to be charged, either that or it is broken.