I'm struggling finding a decent mobile plugin. I was using WPtouch and it seemed great for a long time but recently it doesn't seem to be working. My site showed up as a mobile site on my desktop. That happened with two of my sites - and it shows up as a normal site on my cell phone for a few other sites. I tried WP Mobile Detect - but it didn't seem to work on my cell phone (just got a normal site) and it slowed my site down considerable (I believe it was that plugin).