Graphics cards and its morphing future

With the release of the nVidia 9800GTX scheduled for the end of this year, one might begin to think what will they do once they've run out of numbers. Here's a sizeable list of graphics cards from the two leading chipset developers:

ATi	nVidia
Radeon HD 2900 XT
	GeForce 8800 Ultra
Radeon X1950 XTX	GeForce 8800 GTX
Radeon X1950 XT	GeForce 8800 GTS
Radeon X1950 Pro
Radeon X1950 CrossFire	GeForce 7950 GX2
	GeForce 7950 GT 512
Radeon X1900 XTX	GeForce 7950 GT 256
Radeon X1900 XT 512
Radeon X1900 XT 256	GeForce 7900 GTO
Radeon X1900 GT	GeForce 7900 GTX
	GeForce 7900 GT
Radeon X1800 XL	GeForce 7900 GS
Radeon X1800 XT
Radeon X1800 GTO	GeForce 7800 GTX SLI
	GeForce 7800 GTX Extreme
Radeon X1650 XT	GeForce 7800 GTX
Radeon X1650 Pro	GeForce 7800 GT
	GeForce 7800 GS
Radeon X1600 XT
Radeon X1600 Pro	GeForce 7600 GT
	GeForce 7600 GTS
Radeon X1550 Pro 512 DDR2
Radeon X1550 GE 256 DDR2	GeForce 7300 GT
Radeon X1550 GE 128 DDR2	GeForce 7300 GS 256
Radeon X1550 PE 256 DDR2	GeForce 7300 GS 128
Radeon X1550 PE 128 DDR2	GeForce 7300 TC
	GeForce 7300 LE
Radeon X1300 XT
Radeon X1300 Pro	GeForce 7100 GS TC 256
Radeon X1300	GeForce 7100 GS TC 128
Radeon X1050 DDR 256	GeForce 6800 XT
Radeon X1050 DDR 128	GeForce 6800 Ultra Extreme
	GeForce 6800 Ultra SLI
Radeon X850 XT PE	GeForce 6800 Ultra
Radeon X850 XT	GeForce 6800 GT SLI
Radeon X850 Pro	GeForce 6800 GT
	GeForce 6800 GS
Radeon X800 GTO	GeForce 6800
Radeon X800 GT	GeForce 6800 LE
Radeon X800 XL
Radeon X800 XT PE	GeForce 6600 GT SLI
Radeon X800 XT	GeForce 6600 GT
Radeon X800 XT AIW	GeForce 6600
Radeon X800 Pro	GeForce 6600 LE
Radeon X800 Pro (VIVO)
Radeon X800	GeForce 6500
Radeon X800 VE
Radeon X800 SE 256-bit	GeForce 6200 TC64
Radeon X800 SE 128-bit	GeForce 6200 TC32
	GeForce 6200 TC16
Radeon X700 Pro 256	GeForce 6200 AGP
Radeon X700 Pro 128	GeForce 6200
Radeon X700 XT
Radeon X700	GeForce FX 5950 Ultra
	GeForce FX 5950
Radeon X600 XT	GeForce PCX 5950 Ultra
Radeon X600 Pro AIW
Radeon X600 Pro 256	GeForce FX 5900 Ultra
Radeon X600 Pro 128	GeForce FX 5900 XT
	GeForce FX 5900
Radeon X550	GeForce FX 5900 SE
	GeForce FX 5900 ZT
Radeon X300	GeForce PCX 5900
Radeon X300 SE
Radeon X300 HM	GeForce FX 5800 Ultra
	GeForce FX 5800
Radeon 9800 XT
Radeon 9800 Pro AIW	GeForce PCX 5750
Radeon 9800 Pro (DDR2)
Radeon 9800 Pro 256	GeForce FX 5700 Ultra
Radeon 9800 Pro	GeForce FX 5700 Ultra (DDR2)
Radeon 9800	GeForce FX 5700 VE
Radeon 9800 SE AIW (128-bit)	GeForce FX 5700 LE
Radeon 9800 SE (128-bit)	GeForce FX 5700
Radeon 9700 Pro AIW	GeForce FX 5600 Ultra (FC)
Radeon 9700 Pro	GeForce FX 5600 Ultra
Radeon 9700	GeForce FX 5600 XT
	GeForce FX 5600
Radeon 9600 XT AIW	GeForce FX 5600 SE
Radeon 9600 XT
Radeon 9600 Pro AIW	GeForce FX 5500
Radeon 9600 Pro
Radeon 9600	GeForce PCX 5300
Radeon 9600 SE
	GeForce FX 5200 Ultra
Radeon 9550	GeForce FX 5200 XT
Radeon 9550 SE	GeForce FX 5200
	GeForce FX 5200 SE
Radeon 9500 Pro
Radeon 9500
Radeon 9500 128
Radeon 9500 64

It seems for ATi, once they ran out of 9??? (for example, 9800) numbers they changed to x??? (for example, x850) and then x???? (for example, x1950) numbers. nVidia have not needed to alter its model number pattern yet, but it will need to if it ever wants to release products beyond the capabilities of the 9800GTX. So, what will be next? An n880GTX?
If we put model numbers aside and take a look purely on the technical side, you'll notice that newer graphics cards no longer have specific pipelines - they use general-purpose pipelines, essentially letting you process anything you want to, and that includes physics (most notably the nVidia 8800 series). Will graphics cards maintain its identity as a graphics processor, or will it eventually become the new mathematics coprocessor, whose floating-point calculation abilities render it useful for more than just 3D rendering - physics, logic, sound, and more could eventually be processed by what was once a graphics card...