Updated: Best business smartphones: top handsets for work

Email heroes and all-round greatnessOnce upon a time there was only one firm on the lips of any business' IT team when it came to company phones – BlackBerry.A lot has changed since then and BlackBerry's fortunes have taken a turn, leaving the door open for rivals to court the enterprise business.The rest of the pack is hot on its heels, if not already overtaking, with Apple, Samsung, Nokia, HTC and co. all vying for a piece of the business pie.This is great for any potential business buyer, a