Rock-a-droid

Maybe so these two devices can do one job, and do them well (remember that from somewhere?).

You mention battery life, which is obviously worse in a device that needs to transmit radio frequently. Size and weight are other factors, if you can stand to leave your phone behind for some time. My two DAPs are quite smaller than your typical feature phone, not to mention smartphone bricks.

Finally, I like the audible interface of Rockbox. It makes the player usable for the blind, but also for people that want to switch tracks during trafic (don't you hate these zombies staring at their phone/player while walking or even driving on the street?). And it extended the life of my player even when I ruined the screen.

So what would I be in the market for? A device that
* is tiny and light: less than 200 grams, smaller than half my palm
* is open: Rockbox would be good, something more powerful (Android, MeeGo) is even cooler
* is future-proof: e.g. replacable battery, microSD slot
* works well as an audio player
* can function as a phone: this may need a clip on antenna due to my size constraints
* has its phone functionality turned off easily: with a switch, or when the antenna is removed

Not needed for me:
* big screen
* touch screen
* simple dialling: I am satisfied with phonebook browsing, voice-dialling would be cool
* easy texting: I use it only in emergencies

Since this will probably stay a dream for some time, I will hang on to my Sansa C200 a little longer.