Update: We've recently added a new post with 5 Tips To Get Your TouchPad Running Again.
So you just got your new HP TouchPad home and it's not charging correctly, or perhaps you get an error box that says the connected charger isn't supplying enough power to charge the device. Well don't panic, you aren't alone, and the issue is actually pretty easy to remedy.
The TouchPad's North America Twist-to-lock plug adapter is actually a universal charging device. The top screws off so a second attachment for none US power prongs can be added. If the top isn't securely fastened your device will either show the aforementioned error box or simply won't charge. Right out of the box if you are having issues I'll almost guarantee the issue is the barrel connector.
How can you be certain its connected? Well that's the tricky part. Un-screw the top, and screw it back in, making sure it snaps into place. You might also notice some writing on the side of the connector. Make sure that is aligned correctly.
If it's still not working grab another micro USB charger and connect it to your TouchPad. Note: I've been told you can not charge your TouchPad via USB. USB ports do not provide enough power for charging (this might not include USB 3.0) we are waiting on confirmation of this!
If you are still seeing problems you should probably call or contact HP and use their HP webOS Butler Service (866) 945-7256. Its free for the first 90days.