All HP Touch Pad had been sold out in 48 hours after HP launches it price slash, this is a surprise of the market reaction, I believe the webOS would be reborn along the increment of users.
The popularity of Pad depends on operation system + number of applications
Number of applications is depends on number of developers in the world who do development on the OS
Number of developers depends on the demand of device & the profit they can get
It is a very satisfactory tactics to slash the price to dominate the market to bring more users, then more programmers will join & more application there will be.
webOS may rebirth