Few things:
- cpu has to stay at 1.7 as there are no faster 65c02 chips (and going fpga would be too weird)
- some format of expansion slot(s) maybe?
- if you have hdmi then what for audio output? merge them

6502c in FPGA - cool !

6502c@40 :-)

Cool.
Weźmy się i zróbcie.

Maybe kickstarter?

I will not.

That's not true, because even WDC themselves sell FPGA forms of their CPUs based on the original designs - these can be clocked at up to 200 (!) MHz, but is probably out of our reach. (Is it no longer Whatever if it comes from the creators of Whatever?)

Anyhow, this is a nice idea, but I fear the costs of it being prohibitive...

FPGA is not magic processor to emulate things, but customizable chip. So in fact closer to real hardware than any emulator :)

For now lets XE-R8 will be just standard for:

- Atari 65XE/130XE800XE or 800XL
- 1MB RAM or more (Ultimate 1MB, Satantronic 1MB, Antonia 4MB)
- VBXE x.x
- 2x Pokey (Final Stereo, Raster Stereo, )
- SDrive or SIO2SD
- SONARI soundcard cartridge (or similar product)

XE-R16
Same as XE-R8 + 658c16 (Rapidus, F7 Turbo, Hyperspeed, Drac030 XL)

And later we will make board :D.
I will ask Jookie, Lotharek when this standard will be established...

So game cartridges or apps on www will have:
XE/XL - 64kb, stereo
XE-R8
XE-R16

Something similar exist on ZX,MSX etc...
ZX-enhanced
MSX+

So everyone will know when there will be XE-R8 so game will use VBXE, 1MB ram, Pokey+AY+FM, huge ATR up to 16MB...

@willy: VHDL was created for ASICs, but they can be just as well used for FPGAs. Effectively, barring strange electrical corner cases, the same VHDL data should give the same logic on an ASIC and on an FPGA, perhaps with different maximum clock rates.

Also, you're wrong about WDC not selling FPGA forms of their IPs, see http://www.westerndesigncenter.com/wdc/ :

With 200MHz+ 8-bit W65C02S and 100MHz+ 8/16-bit W65C816S processors coming on line in ASIC and FPGA forms, we see these annual volumes continuing for a long, long time.