<i>Dialers available on the app store should be screened by Google to ensure they comply with US laws.</i><p>What are the applicable US laws? If they say "a cell phone must be able to make calls", then Google and the carriers will just sell a "PDA that has a 3G connection" instead. If it makes phone calls, excellent... but if not, well, it's not supposed to. (Reminds me of these stickers that came with my VoIP phone. The instructions said I was <i>legally required</i> to attach them to "any device that could not call 911 during a power failure". That day, my alarm clock and microwave got a new sticker. They cannot, sadly, call 911 during a power failure!)<p>(Remember how HDTVs were required to have an HDTV OTA tuner? So the HDTV manufacturers just sold "HD monitors" instead, which weren't required to have the pricey tuner. You can't extract blood from a stone.)<p>Incidentally, one time, I witnessed a mugging and all I had was a coffee cup. I tried to use it to dial 911, but it didn't work and the victim died! Starbucks should ensure that their cups comply with all US regulations!