sdpenaloza wrote:1 GB ram - expandable capability (a man can wish)
Multiple ARM cores (to mess with parallel programming)
1Gbit or 100Mbit ethernet connectivity (use the A or B model like current to have that optional between versions)
e-sata connection (for the luxuary RPi users they can mess with SSD or the power hungry with external HDs)
All wishful thinking as i am not sure how viable some of the specs I would like is possible without compromising power usage.
So far as I know, to go to 1GB memory would take either a different SoC (as other boards are doing) or a change to the BCM2835 (*very* expensive) by Broadcom. Either of those options would require a complete new PCB design. 512MB is doable today, but cost prohibitive. It is unclear just how serious Farnell was with the--briefly--posted price of $50 for a 512MB Pi Model "B". The closer that was to a real price, the sooner it is likely to happen in practice.
There are a couple of boards that have a single SATA port. Both use the Allwinner A10 Cortex A8 chip with the Mali400 GPU. I have seen some reports suggesting that support for the GPU is less than overwhelmingly good. It appears that the VideoCore IV on the BCM2835 is one of the best you can get, and there is good support for it as well.
Personally, I would *love* to see a SATA port added to a future version of the Pi, or a related device. I would see a multicore, 1GB (or more), with SATA and a faster default clock "Pi-like" device as a sort of "Pi Server" to go with current Pis as "Pi Clients"...but my applications are not the kind that the Foundation is--so far at least--interested in. (This is not to say that a classroom full of Pis with a server for some functions would be a bad thing...but it's not where the Foundation is now, and there is nothing so far that suggests the Foundation is going in that direction.)
That's why I look at every other ultra-small "Pi-like" system that people mention. So far, the cubieboard appears to be the closest to a "Pi-like" server that I've seen. I'm just not sure that the cubieboard will actually get into full production...let alone at the price they're talking about so far ($50). If they're available in about 6 months, with a Debian/Ubuntu port that works, I'll probably buy 2 to 4 of them, where two would be a paired set of database servers (with replication), one to test and develop on, and one for a spare.