Oki doki fellas.. I used to have a Sony Ericsson K550i Cybershot branded phone.. I'm pretty darn sure that you have heard of flashing mobile phones.. K550i is a very popular mobile phone among mobile users which can be flashed to W610i ..
I followed this article and successfully flashed my phone to a W610i
And it didn't take much long..
http://www.akshayy.com/sonyericsson/crossflashing/flash-k550-to-w610/
Now it features Walkman 2.0 player and MEGA-BASS equalizer preset which I was drooling over for months.. :P
Also it supports Flash Lite based Themes (eye candies lol :D).
And I flashed the Camera driver of my phone to a modded (high FPS Video recording) camera driver (chris's v2.4 driver)..
Will check the picture and Video quality once I get time...... :-)