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Trolltech Woos Developers with 'Open' Linux Phone
An anonymous reader writes "Trolltech, best known for its Qt graphics framework and toolkit that form the basis of KDE, will ship the Greenphone, an open Linux-based phone in September. The working GSM/GPRS mobile phone features a user-modifiable Linux OS, and is meant to jumpstart a third-party native application ecosystem for Linux-based mobile phones. Users will be able to re-flash the phone with modified Linux-based firmware, via a mini-USB port. The device is based on an unspecified Linux kernel along with Trolltech's Qtopia Phone Edition (QPE) application framework and mobile phone stack. Gosh, this has gotta be the perfect phone for KDE lovers!"
Or are you one of those "backwards" users stuck using CDMA and thus (in North America and most other CDMA-using places (except Korea)) locked by phone and provider?
One of GSM's major features (and less so in Korea) is that your subscriber info is stored in a tiny chip. That chip came on a credit card sized piece of plastic a la a "smart card" (if you've used GSM phones in the 90's, you'd know that there were phones that accepted the entire card as is). That chip enables you to take it out of your current GSM phone, buy a new phone (unlocked or same carrier), stick the chip in the new phone, and voila, you have a new phone, with your existing subscription info!
And look, you can get those 10 phones for $1 contract deals and use those chips in different phones than what was provided (depending on the provider, this route may be more economical than just buying the activation kit).
This is one reason why I went GSM looking for a new phone - so I can use it with my phone, but then stick it in a PC card modem when I wanted to use it with my computer. One subscription. Two devices. Only one can be used at a time, of course, but I have the freedom to change phones willy-nilly, or in this case, surf the web using the modem's faster GPRS modem. (The provider can tell, since the IMEI number changes, but there's little they can do).
Korea is special for CDMA because they force CDMA providers to do the same thing ("RUIM" cards) but in North America, most CDMA phones are locked and activated by carrier. But from what I can tell, Cingular and T-Mobile both provide GSM service, and thus would work just fine.
All you have to do is make sure the phone supports the frequencies of your local area. "Quadband" phones (850, 900, 1800, 1900MHz) work pretty much anywhere. Triband phones are often 900, 1800 and 1900 and work in most places in North America (850 being the old AMPS frequency, and isn't in widespread use where a Triband phone will leave you stuck vs. a quadband phone).