Now Unlocking the NEC 313, 316, 606, 613, 616 and 808 remotely for Free !! and also a guide on how to unlock your E515 and E525 with a cable and software here (click on the word here !!)
Also Unlocking Samsung for free here
The following phones cost only £1 to unlock (only the models listed)
AEG
Alcatel BE1,BE3, BE4, BE5, HD1, HE1 , HX1, HC-800, HC-1000
Vitel TSM3, TSM4, TSM5
Maxon
LG 510, 510W, 520, B1200, M1200, 1300, 7010, 7020, 7100 , G510, W3000
Panasonic GD50, GD55, G51and G50
Siemens St55 , CL50, 8008, CL55
Sony CMD-C1 , CMD-CD5
New models come out all the time, if it is not listed then please ask !