see Dos1's http://talk.maemo.org/showpost.php?p...&postcount=115
We will not build a device that's for example missing the eMMC. It might become a second uSD slot, a 16GB eMMC or a 128GB eMMC, or some magic chip with 32GB flash and 16GB RAM, everything is on the table except one thing: leaving out key features of N900 on Neo900.
FYI: Nikolaus already came back from holiday and had a first analysis of features in N900 vs features in GTA04, we got a long list of items to work on (like eMMC) but we think it *might* be possible to actually create a N900-compatible new PCB.
[edit] insider info: one issue is that GTA04 has WLAN connected via a completely different interface than N900, and that has impact on other peripherals since on SoC each single pin has at least two, often 3 or 4, alternative functions.

stay tuned
/j