iPhone is being tested at JP Morgan and other large enterprises as an alternative to RIM's BlackBerry, Bloomberg reports. They have 220,000 employees. UBS AG with 63,000 employees is doing likewise and Standard Chartered Bank will have 15,000 iPhones distributed by end of year.

Cost savings and employee preference were the two biggest factors cited by companies for the shift in the Sanford Bernstein survey. Employees would rather own an iPhone and are increasingly willing to buy the device themselves, which helps cuts costs as companies look to rein in spending, said Sanford Bernstein’s Ferragu.

Wells Fargo previously switched to iPhone and iPad. Enterprise is a momentum game and it looks like that momentum is changing.

Are you using iPhone in your enterprise?