It can save you money. It can make calls where AT&T’s signal is weak, like indoors. It can turn an iPod Touch into a full-blown cellphone.
And it can ruin the sleep of cellphone executives everywhere.
Line2 gives your iPhone a second phone number — a second phone line, complete with its own contacts list, voice mail, and so on. The company behind it, Toktumi (get it?), imagines that you’ll distribute the Line2 number to business contacts, and your regular iPhone number to friends and family. …

Gaming developer Storm8 has been sued for allegedly collecting phone numbers of iPhone users who downloaded the company’s popular games from the iTunes app store.
“The wireless telephone numbers of users’ phones are not used or necessary to play any of Storm8’s games, yet Storm8 has written the software for all its games in such a way that it automatically accesses, collects, and transmits the wireless telephone number of each iPhone user who downloads any Storm8 game,” states the lawsuit, filed on behalf of Lynwood, Wash. resident Michael Turner.
Turner alleges that …