^ yup, both XL and 4k have 300k notes. Not sure about the per sequence limit or if there is one, but even it there was, at least you can bleed over to the next sequence (although I'd think its more of an issue for live sets). I just know I hit the 256 sample limit on the XL all the time. Sounds like what I said about the RAM vs note capacity is probably the case if what you said about JJ OS is true. What a no brainer with all the extra RAM on the new machines. Should be an easy fix for an Akai if so and enough people complain. In my mind, that could easily be a global setting you could set to whatever you like that would simply require a reboot to apply.
Reem, of course you will never hit the note limit, you don't use synths or a real sampler
Again, it will not effect the average MPC user, just a few hardcore MIDI junkies here and there. But seriously, that is still one of the main reasons people still praise MPCs, so they should embrace it.