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We have a copy of TI's demo/prototype UI implementation for complete phones (as opposed to AT-command-controlled modems), but no hardware platform on which we can properly exercise and further develop this code. TI's demo/prototype UI targets the 176x220 pixel color LCD on their D-Sample platform; the Mother has managed to get her hands on one of these historical D-Sample development kits, but we are not able to actually do anything with it: the D-Sample has Clara RF, whereas we only have L1 code for Rita RF. And even if we found a copy of the missing tpudrv10.c RF driver module, it still would not solve the problem that the Mother's D-Sample kit exists only in singular quantity. Furthermore, there is some evidence that the LCD module in our D-Sample kit may be defective in a way that cannot be worked around, although we are not able to tell for sure because we don't have any schematics for the D-Sample.

The Mother's desired solution is to build our own Handset Motherboard Prototype (HSMBP). It would have the same Calypso core chipset as our current FCDEV3B, plus a new 176x220 pixel color LCD of our own (same size as on the D-Sample, which is one of the industry standard sizes), a keypad with 21 main buttons and 3 side buttons like on the D-Sample and on the Pirelli DP-L10, and the rest of the peripherals for a standard handset motherboard. It would be laid out as close as possible to a real handset motherboard product, but with all off-board components including the battery attached via connectors, so that the HSMBP can be used bare on a lab bench without a plastic case to hold everything together.

As a very distant goal, it would also be possible to put together some kind of plastic case around our HSMBP and turn it into an actual handset which we could then carry in our pockets and purses, but this idea is so distant that it makes no sense to even seriously think about it presently.