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Steve Markgraf steve at steve-m.deHi, just to reflect my own thoughts on this topic: On 14.01.2011 14:39, Scott Weisman wrote: > Now, given that the supported phone hardware is old and not reliably > available, I was wondering if anyone knows if the Calypso and other > chips in these old phones are still available for new designs? How much > interest would there be, say, in an open, but VERY SIMPLE, actual phone? > Kind of like the Pandora project, but without the ambition to make the > most advanced portable game player possible. This is more or the less the GSM Devel-Board idea [1] that Harald wanted to pursue initially, with the difference that it would have used a custom DSP and not the Calypso. But even if you don't take in account the time and money it takes to do a proper pcb- and especially RF-design, this is definitely something you don't want to do with the Calypso (which is EOL and not available for new designs, although you might get it still in the semiconductor grey-market). But what would be the benefit of all this? The Compal-phones are still available in huge quantities (see aliexpress.com for example, new Motorola C118 for $19.79 including world-wide shipping). You surely won't beat that price with your hardware. And it still isn't really 'open', since you have e.g. the proprietary DSP code. It might make a bit more sense with MediaTek baseband chips (once supported) if you want to do something out-of-spec with them, but even there you have thousands of different phones readily available. Just my 2 cents... Regards, Steve [1] http://bb.osmocom.org/trac/wiki/GsmDevelBoard