The D3s processor runs at 750 MHz, and although it's no Snapdragon that's a lot of juice for a portable media player. The lag, as I see it, must have it's cause in sloppy firmware or a lack of RAM, or probably a combination of the two. I read somewhere that the D3 suffered from low RAM. Why Cowon would pass a product with such an obvious hardware flaw is beyond me. I do however believe that most of the lag can be resolved with firmware updates and the way I see it, this and the current lack of gapless playback is the only thing stopping it from world domination. Seriously - the huge, high-resolution AMOLED touchscreen, seamless drag-and-drop 1080p HD video support, famous Cowon audio quality and BBE sound enhancements IN COMBINATION with the Android OS makes it pretty much the perfect PMP - I wasn't even sure if getting good sound out of Android was possible, but Cowon proved us wrong. A lot of great Android apps could potentially work on this device, even if that won't be the reason most of us buy it. It's just a very welcome bonus.
Disregarding the lag, there are few, if any other media players offering this kind of high-resolution AMOLED screen, 1080p HD support and audio quality, and certainly none with BBE+.
The screen, true HD support and audio quality alone, as well as the unusual design and tactile buttons, would make it worth the price tag if some of the lag could be fixed. If it's an unresolvable hardware problem, I might still consider buying it, just because it's so awesomely Cowon. And the rest of you will only have to wait for a D3+.