I've been saying that IP based video conferencing will be taking off in 2009 and it looks like I'm right with that prediction.
NASA and Verizon have reworked their agreements and now will have IP based video and web conferencing supplied by the Baby Bell.
At the same time, Forbes is reporting how well the giants in video conferencing are doing. Polycom was able to maintain their growth. Cisco keeps building Telepresence Suites, while HP's Halo seems to be just getting their sea legs.
If any company is vulnerable to a better product at a lower price, it would be the HP Halo property in my view. Others offer similar quality (i.e. Lifesize for one) and at better prices. At the end of the day, price will still be in the determination equation. HP will likely have to come down in price and that will start the ball really rolling, even in a down economy.