Finance & Commerce has a paywalled article about the Lowertown O&M facility. Here's one detail I know folks have asked about -- The facility can handle up to 35 LRVs, so most of the Green Line vehicles will be stored there, but some (12, according to the article) will be stored at the Franklin Avenue facility.
F&C's photo set from a tour of the new Lowertown facility is on Flickr (low resolution, but better than nothing):
http://www.flickr.com/photos/financeand ... 489434138/
Are those the same 12 that are assigned to the blue line as part of the three car set project?