T-Mobile, the nation’s 4th largest mobile carrier, has struggled to keep up with its top competitors, and the lack of Apple’s iPhone on their smartphone line-up certainly doesn’t help. However, has just announced that its network will be ready for the iPhone by the end of the year.

T-Mobile is upgrading its 4G network to launch HSPA+ in the 1900 MHz band this year. This will definitely improve their service and make it compatible with our beloved iPhone.

“As part of the company’s network modernization effort, T-Mobile also plans to launch 4G HSPA+ service in the 1900 MHz band in a large number of markets by the end of the year. Network modernization trials have shown up to a 33 percent increase in HSPA+ data speeds as well as improved in-building coverage. Rolling out 4G HSPA+ services in the 1900 MHz band will also provide customers with the ability to use a broader range of devices, including the iPhone, on T-Mobile’s 4G network.”

Although T-Mobile is actually not an official iPhone carrier, there is currently around 1 million iPhones on its network. Many people have unlocked their iPhones and jumped to T-Mobile, despite the limited speeds and setbacks. The new upgrade, however, will change that. No longer will T-Mobile iPhone users have to suffer 2G speeds.

This can also help T-Mobile become a partner with Apple to officially carry the idevice and also attract a many more users.

How many of you are currently using an iPhone on T-Mobile? If not, would you make the jump if it became compatible?