Lets talk about what you want to see in a Gen III aftermarket Block?

What I would like to see in an aftermarket block is just plain AVAILABILITY. I looked at the Dart block at PRI this year. Nice looking piece. Rep I talked to said there were three out in the hands of shops waiting to go on dyno for testing. One of the more important things would be cylinder thickness and how it ties to the rest of the block to accept high loads of pressure. Maybe even something that would have an accepted part number for NHRA class racing. Now I'll really go off the deep end and mention an affordable alloy block.....