It looks basically like the 7921G with the following enhancements:

• Support for Bluetooth v2.0 headset profiles
• Hermetically sealed phone/display that is IP54 rated
• Ruggedized industrial design is compliant with military 810F standard with a rubber casing to shield the phone from damage
• A more compact form factor gives you an IP phone that is easier to hold .

There is more info available here. . .
http://cisco.com/en/US/products/ps9900/index.html

So, I was browsing over at 6200networks.com and saw a post by Joe Harris, where he uncovered a new router platform.

It looks like Cisco is phasing out the original Cisco Unity Express Network Module and Unity Express Network Module Enhanced Capacity.

The only option to purchase in this form factor now is

Lets say you have 4 offices each with a UC520 or ISR running Unity Express.

Saurabh V a TME at Cisco gave me the following information regarding the new IP phone models.<

Cisco has released two New IP Phone Expansion modules the 7915 and 7916.
 

Finally, some much needed updates to the UC500 licensing model.

NEW, 24User UC520:
- UC520-24U-8FXO-K9, List price is $8,995.
- Orderability begins February 8th.

Cisco has a new Conference Phone The CP-7937G

Smith on VOIP has a good review of it Here.

Some of the features not mentioned in the review, but worth mentioning here are:

• Superior wideband acoustics with the support of the G.722 wideband codec
  
• • Support for IEEE Power over Ethernet (PoE) or the Cisco Power Cube 3
  
• • Expanded room coverage up to 30 feet by 40 feet with the optional external microphone kit
  
• • Support for a third-party lapel microphone kit
  
• • New larger backlit liquid crystal display (LCD)

Cisco's Data Sheet for it is located here.

Question: what looks like a UC500 but isn't?
Answer:

CIsco has made a CHEAP phone. Ok, not cheap lets use the word inexpensive. 

The Cisco Unified SIP Phone 3911 is a SIP only single line phone. Most likely good for lobbies and medium use installs.   It will work with Call Manager Express and the UC500 series.  You just have to know how to configure SIP phones on

Cisco has introduced new IP Phones!

New Cisco Phones

7972G	7926G
7975G

The really cool new features the my opinion are