MetroPCS, Navteq ink LBS deal; Samsung, LG sell 20M touchscreen phones each

> MetroPCS named LBS vendor Navteq as its preferred map provider. Article

> Samsung and LG announced that they have each sold over 20 million touchscreen phones. Article

> Developers need to make sure, amid the proliferation of app stores, that the ones they pick offer a compelling user experience. Commentary

> Speculation is rampant that Apple will debut a new iPhone during the company's annual Worldwide Developers Conference, but the question of whether the device will run background applications also looms large. Commentary

> Microsoft announced it finished work on the Windows Mobile 6.5 operating system, expected for release later this year. Article

> A new report by Pyramid Research said LTE growth will outpace 3G growth in terms of subscriber adoption. Article

> NTT DoCoMo announced it will use Motorola's Mobile Advanced Location System to power the carrier's new location-based services. Release

And finally... An Ohio man said he overreacted when he called 911 after an argument with his 28-year-old son over the son's messy room. Article