2x HDMI monitor inputs, why?

OK, that makes perfect sense that you could have separate devices providing input to one monitor. It just never occurred to me, but now that I know, it explains why I see 2 monitors under display preferences when I've only got one.

In my defense, the monitor instructs show the two HDMI inputs from one source [wish I could attach a digital copy...].

The monitor is a Hanns-G 25" I picked up at Costco online for $229 shipping included in price. The monitor can be fully calibrated in OSX, but on the PC side only has Vista drivers, tho works as plug'n'play in XP...

Overall quite happy with the price and screen real estate, but I am not a professional graphics guru.

Sorry about that false link in the previous post, I have no idea how that happened, and I cannot edit it out.

*A RELATED QUESTION*, and perhaps I'll answer it myself, but am I wrong to assume that the HDMI input path for the monitor is faster/better quality than the DVI???

From: http://forum.ecoustics.com/bbs/messages/34579/122868.html

"First, to clear away one element that can be confusing: DVI and HDMI are exactly the same as one another, image-quality-wise. The principal differences are that HDMI carries audio as well as video, and uses a different type of connector, but both use the same encoding scheme, and that's why a DVI source can be connected to an HDMI monitor, or vice versa, with a DVI/HDMI cable, with no intervening converter box.

The upshot of this article--in case you're not inclined to read all the details--is that it's very hard to predict whether a digital DVI or HDMI connection will produce a better or worse image than an analog component video connection. There will often be significant differences between the digital and the analog signals, but those differences are not inherent in the connection type and instead depend upon the characteristics of the source device (e.g., your DVD player) and the display device (e.g., your TV set). Why that is, however, requires a bit more discussion."