As others have already mentioned in their reviews, this charge stand is much smaller than you would expect at just 5.5" in height even after reading peoples comments I was surprised with the size when I opened the box.
Seeing as the other reviews have covered all the features this device adds to your Touchpad, I'll try to add a couple of other details for those that may be still on the fence about ordering.
Firstly, while it does change just fine through the official HP Touchpad case, the design of the case was must have been pretty poorly thought out with this feauture in mind. You may have read elsewhere that the Touchstone will only charge the Touchpad when the Touchpad is sitting in one of two possible positions, these are either upright with the home button at the bottom(as you would excpect), or sideways with the homescreen to the right. OK you might think, so where is the problem? Well obviously in the upright position, unless you wish to keep the case flap closed while it sits on the charger, the front flay would need to be open like a book which is unsightly to say the least, not to meniton unstable. So my first thought was I know, I can keep the case on and have the flap folded back over the top, should look fine and that way no need to remove the case and can still enjoy the display. Nope, with the flap folded over the top, it won't charge, as the homescreen would be to the left meaning it's the wrong way around. As you obviously can't fold the flap underneith the charger, the only way not to remove the official case to sit it on the charger, is to have the flap closed, or open book style in the upright position.
One other comment I would add, as I found this a little disappointing. While the Exhibition Mode adds a touch of class to your charging Touchpad, be aware that the amount of applications available for this mode are very limited and I don't imagine will increase much if at all in the future(unless someone else picks up WebOS of course). The three optional clocks look lovely, as does the photo slide, but the agenda is near pointless IMO as the calendar only uses about a tenth of the screen in th etop left corner, with text entries below. What I was really hoping for and planning to get use from(I have a terribel memory!) was a nice clear and constant calendar display, similar to Google Calendar which of course you can access from your Touchpad. Sadly there isn't a single calendar display option for Exhibition Mode, and I found aside from clocks and photos, there was little else of use on the WebOS store, so clock it is.
Anyway, this may sound like a negative review, but that isn't the intention, I'm just trying to add some details which other reviewers haven't picked up on in detail. Overall I'm very happy with the Touchstone and would highly recommend picking one up while they're still avaible, between this and the Pre Touchstone I really think Palm/HP nailed the charging solutions and the Touchstone is well worthy of its 5 star reviews!