Cell-ID positioning is possible in Java ME level in following device groups:
- SonyEricsson, since version 7.3 (JP7). Signing not required.
- Motorola, some devices, requires signing with JavaVerified
- BlackBerry, most devices (at least OS 4.0+)
- Nokia S60, since S60 V3.2, no requirements
- Nokia S40, since S50 v5, requires manufacturer or operator signing
Please let us know if you know more devices.
See more in http://www.slideshare.net/jaakl/terminalbased-mobile-positioning-overview-presentation