Sprint CEO Dan Hesse has laid out a schedule for the company’s much-awaited WiMAX deployment, which will now be launched in Baltimore in September. Washington DC and Chicago will also get coverage before the end of the year.

While Hesse was addressing NXTcomm his CTO, Barry West, was extolling the utility of their WiMAX network at the WiMAX Forum in Amsterdam, as reported by telecoms.com. He admitted that the original schedule has slipped. Despite having 575 operational cell sites the back office system has proved more complex than anticipated.

“I’m probably two months behind where I thought I would be,” said West, adding that the system now allows the company to “activate a device over the air under five minutes and set up a billing relationship with the customer”.

Amdocs is providing that back-end system, and Sprint will be hoping the company has improved since handling Vodafone’s upgrades.

Hardware to access the network won’t be subsidised, so punters will have to pay the true cost for the PC Card modems, USB dongles or Nokia N810 devices which will (probably) be the only things available at launch. But with Intel pushing WiMAX so very hard it will no-doubt be built into laptops by the end of the year.