What the f**k? What hardware acceleration are you asking for? Harmattan already uses hard floating point and Thumb, and the UI uses OpenGL. Without OpenGL, it'd be like running ICS on the G1. Also, the notifications are truly global (just swipe!), not like on Android where some fullscreen apps disallow you from getting yer notifications (hurr.) The lag is typical of Nokia devices. See: Every Nokia handheld ever made.