Recommended battery powered device + enough processing power

[lygos]

Hello, I am just getting my hands dirty with working on Linux boards and I need a bit of guidance for making a small prototype. What I need to be able to do is:
- record audio input
- play audio output
- make web requests/responses (over WIFI, or through a smartphone via BlueTooth)
- read RFID tags

My prototype is basically text-to-speeh + voice recognition module. I am thinking about using some online service for the TTS/VR and the device only records/plays the sounds.

Which of the iMX233 boards would be powerful enough to do the above things and at the same time run on a battery (with a reasonable amount of work hours)? Also any idea how I can calculate (estimate) the power consumption for the board?

Thank you.

[lambda]

All the iMX23 boards use the same SoC and RAM, so processing power should be the same on all of them. (And most likely sufficient for your needs.) I don't have any numbers for power consumption.

HTH,
Harald