others brand doesnt seems that cheap either, i will show u their cheapest GPS-enabled devices[but again non-nokias aren't has free navigation, also not every nokia devices has FREE navigation]
theres LG GT505 @ RM 686
5mp AF+LED flash, nice cam though but not for video...
voice guided navigation [but using it is not for free]
no 3.5mm audiojack
wifi, supports 8gb microSD
theres SE J10I2 (ELM) @ RM 525 / 668 (ORI)
5mp AF+LED flash, nice cam, ok video recording..non touch[SE cheapest touchscreen device is x10 mini which almost double of ur budget]
with A-GPS support; Wisepilot navigation[not free]
no 3.5mm audiojack
wifi, supports 8gb microSD
samsung's 700++
u may even consider Nokia 2710 Navigation, cheapest GPS phone but not free to use[unlike some others Nokia]
2710 @ RM 396 / 435 (ORI)
bar phone, 2mp cam...
pm me if interested
Added on September 8, 2010, 9:31 amC901 @ RM 536
C903 @ RM 598 / 650 (ORI)
J10I2 (ELM) @ RM 525 / 668 (ORI)
whats the main diff?
c901-xenon flash, bar, supports up to 8GB m2 card
c903-gps, slider, tv out, supports up to 16GB m2 card
elm-gps, wifi, bar, green phone[save the earth

], no lens cover unlike the other 2, newer than the above 2[released@ this year], supports 8gb
microSD card, Noise cancellation with dedicated microphone
but elm has the better image quality than the others 2 & even more bonus features
pm me if interested