Guys you do realize on the nexus with 4.0 you can mimmick the iphone right? Go into settings, developer options, background process limit, and change it. Now if you change it to 1 or no background processes and you go to open browser and start to type your address quickly it kicks out. But so far everything else works fine and you will notice in browser and ui it actually picks up a bit more, hence why I said earlier I see no lag.