This phones are were popular a few years ago, at the time of Moto Razr.
It was a huge hit back then.
Several foundations were formed, with the goal of establishing a globally competitive, Linux-based operating system for mobile devices. Out of them, only The LiMo (Linux Mobile) Foundation left a mark on the world market with the help of some sleek handsets from Motorola.
Although, the foundation was joint effort of Motorola, NEC, Panasonic, Samsung, DoCoMo, and Vodafone. Only Motorola managed to lure the customers.
Here are some of the popular handsets based on linux:
RAZR V8, ROKR E2, ROKR E6, A780, E680, A910, A1200, U9, E8