High speed flatbed scanners, what's the absolute fastest?

[X-ray]

I have an Epson Perfection 4870 Photo. Using an A4 colour picture, I timed the scanner:

Preview: 12 seconds
Scan: 14 seconds

Settings: 24 bit colour, 150 dpi, 800 x 600 target resolution. No dust removal filter, no sharpening, no contrast/brightness parameters, no descreening filter.

That is running on a PC through USB2. The scanner also has Firewire ports but there is no difference in speed that I can detect. This is all on an XP box.

Some more figures:

Same scan, but 300dpi (2412 x 3400): 19s.
Same as above but with sharpening filter: 20s
Same as above but with descreening filter (magazine print): 27s
If you put on a dust removal filter (Digital Ice) then the scan time shoots up to 6 minutes!!

If you want me to run more tests, just let me know. By the way it does transparencies too (but smaller than A4) and comes with negative holders, but no document feeder. Some flat objects can be scanned directly from the glass (such as an A4000T bezel door for example, or a remote control or a computer PCB).
The quality is amazing.

[X-ray]

@ Red

It comes with EpsonScan software and is twain compliant. It also comes with Silverfast SE and Abby Finereader. The scanner might be overkill if you don't ever want to scan transparencies, but who knows what else you might scan.
Publishing to web...I dunno. I will have to find out. I haven't seen that option in my software.

Nice reviews of scanners (including mine) on this site

I can't link directly to the review section, but you can choose reviews from the left. On the page that opens the 4870 is right there at the top.

Edit: also realise that my tests were done in professional mode: you can scan in easy mode with no preview, and it will auto-straighten and recognise picture edges (even if multiple) with one click.