Engadget has reported that HP has filed a trademark application for "PalmPad" which is believed to be used for their tablet. There have been multiple unconfirmed reports that HP will release a Windows 7, Android and webOS-powered tablet either this year or next. Recent reports state that an Android-powered tablet is not currently in the works. With the acquisition of Palm, it just makes more sense that they will introduce Palm's webOS first.
In May of this year, Digitimes reported that HP confirmed that they will be releasing a webOS-powered tablet at the end of the fiscal year (end of October).
Lets see what happens.