[PLUG] Linux based Dual SIM GSM phone?

[ಓಂ]

This is slightly different question...

I have recently got FLY B700 Duo (a wonderful phone), which I think
uses some sort of windows OS because alongwith the free 512M memory
came PhoneSuite which has setup.exe  fileand it is case insensitive to
folders on card.

I am interested to know if there is any similar device (any brand)
that uses Linux OS?

My interest is limited to DUAL SIM GSM phone that runs Linux.