Remember that ridiculous Steven Slater rap video promoting Line2's in-flight texting app? Well, the VoIP company just dusted off the point-and-shoot and hopped back over to YouTube, this time peddling a complete telephony solution for iPad. Launching July 28th, the service will let you place phone calls using a wired headset or the built-in speaker and mic, listen to voicemail, and send texts from a single HD interface. After a one-week trial, you'll pay $10 per month (or $100 per year) for the privilege, though with free number porting and unlimited domestic calling that's a fairly solid deal. Many of us barely use our cell phones
