After poring over the obscure options in the driver we did finally manage to calibrate the thing, tapping on the screen where we thought the crosshairs should
have appeared, which gave us accuracy that was close but not perfect, meaning the mouse cursor always moved a few pixels from where we touched. That cursor is perhaps the biggest issue -- tapping is equivalent to moving the mouse and clicking, meaning that you can touch to bring the cursor over to the auxiliary screen to activate something there, but will always have to reach for the mouse to drag the cursor back to where it was. If we have to move the mouse at all we'd just as soon move it both ways. Compatibility fun
Sadly the touchscreen driver wasn't the only one causing problems. On released flavors of Windows we had no issues, but testing on our Windows 7 machines caused a number of problems. On an Eee 1000-series, which we were most eager to test this with, the Win 7 drivers simply wouldn't install. At one point the driver dialog tells you not to worry if your screen starts to flash. We, of course, worried, and sure enough about half-way through the Eee simply went dark and never came back again. Thankfully all was right after a reboot, but we never got the display working with it.
On our Win 7 desktop we had more luck, getting the displays to work, but the driver immediately killed all gaming performance, somehow interfering with our GPU and causing 1fps throughput. On top of that windows started flashing and flickering unpredictably as soon as the drivers were installed -- problems that went away as soon as they were uninstalled again.
It's not fair to criticize this driver too harshly yet, as it's still rated as alpha (though we were given access to the beta version and found it to be no better), but we're guessing many of you have already ditched Vista or XP and gone to Windows 7, despite it not being available at retail just yet. So, if that's what you're rocking, you'll want to wait for the full driver release before rolling with one of these.
720-S to the left of the 710-S.Look, but don't touch
If either of these two pique your interest we'd highly recommend sticking with the cheaper 710-S. The touchability of the 720-S did nothing for us, nor did the decreased image quality, and at $80 more than the other ($149 vs. $229) it's simply not worth it. Whether the 710-S is worth it is, of course, up to you and your budget. It's a bit too pricey to pair with your average netbook, but could make a great travel companion for higher-end, slim laptops that are lacking in display space. For those not looking to take their external monitor along with them, stick with the older models. Their stands may be bulkier and they're not nearly as stylish looking, but they are at least marginally adjustable.Update:
There are some questions in comments we wanted to address:Q: Is the $30 Mac OS X driver for both displays, or just the 720-S?
A: It's $30 for the OS X touchscreen driver. Both monitors will work as non-touchscreen displays on OS X without purchasing any additional drivers. Q: How are the displays powered?
A: Both receive power over USB. They include a dual-plug USB cable in case, for some reason, whatever device you plug them into does not provide enough juice over a single port. But, in our testing they worked fine without needing the auxiliary plug.