Originally Posted by
menaknow First, welcome back!
Well I am not sure what you qualify as lag, but I rarely find lag in launching most applications. There is a 1-2 sec pause in launching of an application, but it's not noticeable.
Using the application switcher (or whatever it's called when you hold down the menu key) the change is quick. Overall, I am quite happy with the 9900.
The only recommendation I will make is you need to check the applications you install. Some applications drain the 9900 battery if your not careful, and you will have to wait for an app update. For example foursquare when OS7 came out would kill my battery in several hours. After they released an update that problem disappeared.
Just install, test and if ok, install the next application.