I got a Sony Ericsson K750i as gift. Iíve always been a fan of Sony Ericsson phones starting with the R320s (which my wife won in a raffle a few years back). The first thing that I did when I opened phone package was to change its themes.
The K750i displays animated themes. My previous phone, the T630 uses themes to control its appearance and I must have tried close to 30 before I settled on the Firefox theme.
For mobile phone themes, I check three sites:
Zedge is, in my opinion, the best repository of mobile phone themes. It offers a lot of themes in various categories and for various phone models: Nokia, Sony Ericsson, Alcatel, LG, Motorola, NEC, Pantech, Phillips, Samsung, Siemens etc.
In order to download themes, wallpapers, ringtones, games and applications from the site, you have to register for a free account. Your free account allows you to download 20 items (ringtones, wallpapers or applications) everyday. You can either download the item into your computer for sending to your phone via Bluetooth, infrared or data cable or you can add it to your account for downloading via wap.zedge.no.
If you plan to visit only one site for your mobile phone enhancement needs, then Zedge is the site for you.
Lasyk is a network of sites for various Sony Ericsson phones. Instead of having everything under one site, they organize the site into sub-domains based on the phone model so if you want themes, ringtones, games and wallpapers for your Sony Ericsson t630, you can go to myt630.lasyk.net.
Esato also has great themes and other mobile phone goodies but it doesnít offer as much as the two previous sites. It has a discussion forum, though, that has been helpful when I tried looking for solutions to various mobile phone problems.