We have been contacted by one or two community users recently, with reports that Hewlett Packard are planning on releasing a new Clamshell.
We have contacted HP themselves for confirmation of this, and interestingly they could (would?) neither confirm nor deny it to us at this point in time.
I wouldn't get your hopes up though, it is extremely unlikely that HP will release a new Clamshell. A new Sub-Notebook on the other hand isn't as implausible.
Stay tuned for more as Chris 'leans' on his contacts.