From the 24th of June 2010, o2 will be scrapping the unlimited data plan for new iPhone customers.

Existing iPhone customers on an unlimited data plan can keep that plan as long as they don’t change tariff, or upgrade to the new iPhone 4.

Anyone getting a new iPhone from 24th June will instead be offered a tariff with the following:

Cap of 500MB of data a month – £25 to £35 a month contracts

Cap of 750MB of data a month – £40 to £45 a month contracts

Cap of 1GB of data a month – £60 or £65 a month contracts

Given that many iPhone users are heavy data users, this new cap will be far from ideal, and many may choose to either a) not upgrade to the new iPhone 4 and keep their existing Unlimited contract, or b) shift to a network that offers a less extreme data cap.

Although the new data caps take effect from 24th June, it seems o2 won’t be enforcing them until 1st October 2010. From 1st October 2010, it’ll be an extra £5 for each block of 500MB used.

Hacked off with o2’s new data policy? Add a comment below!