I was hoping NASA would get its four Shuttle flights for 2007 but unfortunately it's not going to happen: Shuttle launch scrubbed, postponed to January - spacetoday.net. Perhaps this is another hint that Congress should not force the agency to Fly The Shuttle Forever.
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Here's yet another reason to avoid living for long periods in micro-gravity: Microbes May Threaten Lengthy Spaceflights : Immune Systems Of Astronauts Found To Be Weakened - washingtonpost.com - Dec.9.07. Sure is a shame that NASA is wasting money on ELVs rather than putting money into in-space R&D projects such as demonstrating practical artificial gravity architectures using rotation.
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According to this article, the structural and avionics components of the Spacehab ARCTUS system proposed for COTS will come from Lockheed Martin's Centaur and XSS-11 programs" : SPACEHAB Does More Than Wish For NASA COTS Award - Satnews - Dec.9.07.