Skyfire?

http://www.skyfire.com/product

Is there anyway to get iit on the LG Renoir or any other phone?

Currently, Skyfire runs on Windows Mobile (smartphones and PPC) and Nokia N and E Series (Symbian S60, 3rd Edition) phones

- Not supported: Samsung and LG Symbian devices, Symbian Series S60 (2nd edition), or UIQ

Maybe in the future

What about nokia 5310?

Its not symbian, so no