Hello Everybody I recently switched to Apple iPod Touch 4. The 3rd Gen device i was using ran iOS 4.0, and not 4.1. Both devices are not jailbroken, but has applications that occupies additional two screens. But in iPod Touch 4, it frequently lags in following places, While showing the animations to show running applications While showing the onscreen keyboard While switch to home-screen from an application and vise versa. Some times, while zooming in/out in safari page. The 3rd Generation iPod Touch i was having doesn't show any lags in the above mentioned circumstances. Even if it shows such a lag, then there could have been so many applications running in the background. I can think of few reasons for this problem Because of higher resolution, the OS has to show more details in a given time. iOS 4.1 to be buggy Apple A4 processor to be incompetent High number of legacy applications, iPod Touch 4G's processing resource wasted in enlarging it. My point is, Apple iPod Touch 4G appears to have lesser amount of Ram.