Meanwhile, the fate of HP's webOS mobile platform hangs in balance. The company is still analyzing what to do with webOS, Prophet said.

In August, HP said it would keep webOS but kill smartphones and TouchPad tablets based on the OS. A buying frenzy ensued after HP sold remaining TouchPad tablets starting at $99. Smartphones such as Palm Pre and Pixi also sold out in the fire sale.

Prophet did not comment on the eventual fate of the TouchPad, but a company spokeswoman said support for the device will continue. It's too early to comment on smartphones, Prophet said.