Here is a very interesting mod i found on the net. It's not done by me, but it look very good. It's wireless charging with a DSI charging kit.
Some pics:


Here is the link to the blog of the guy who did it: http://renerento.wordpress.com/2012/...less-charging/

I'll also integrate this in my phone, along with the other two mods planned (hot-swap sd and sim card) as soon as i'll have some free time