I was against pluggin in the powermat cube into my phone as well, until I started using it. My wife and I had BB's with the adapters on the back, and we keep the powermat on the counter. Was easy to just drop and charge. I switched to the droid incredible and while it is just the same as pluggin in the cord, it still is easy to have my wife's phone and mine charge in the same spot. Plus, I can keep the USB cable that's part of the charger with my computer instead of running to get it everytime I want to connect it. Since it is micro USB like my BB, I keep the original BB charger at work for an extra boost on days I use it alot.
Like you guys, I got the same response from Ken at powermat. Back in January, they said their "powerpaks" a.k.a. batteries with powermat magnet induction would be out in May. Obviously they are behind, but HTC was one of the phones listed to have products. Since the Dinc battery is compatible with other HTC phones, it is highly likely you will see a powerpak for it. It is not cost effective for them to make products for phones that are not widely popular, but with the popularity of the Dinc, and the compatibility with other HTC products, expect to see one by August. Rumor is that Powermat has been trying hard to have their technology implanted in devices by their manufacturers.
Just an FYI, the travel powermat works through silicone skins and other cases, where I've had no luck with the regular powermat.