In a note to clients today, analyst Katy Huberty of Morgan Stanley has raised her iPad sales estimates from six million to 10 million units for 2010 and her Apple price target from US$310 to $332.

As reported by “Fortune” (, she told clients:

° The iPad is on track to become the fastest ramping mobile Internet device out of the gate and one of the most popular in history.

° Early iPad usage patterns validate the tablet as a computing device. It’s already overtaken the web browsing share of devices like the iPod touch.

° It’s at least partially responsible for a sharp drop in the growth of netbook sales, which decelerated to -13% year-over-year in the month of April, from +45% in the first quarter of 2010.