2) Some have suggested that the UA could be a new form of (experimental) scanner, or possibly a nav-beacon type thing. This would certainly match up with the "Honk, chitter, purr" soundtrack and the morse-code system-ident that's embedded. There's also the GalNet story about Kahina Tijani's ship getting a new Gutamaya Scanner fitted (at Avalon works?). The last reference I can find to Tijani in GalNet is her recall to Achenar - has anyone tried taking the UA to Avalon works / Achenar and checking Bulletin Boards there?
2) I don't know
The senator angle, although it's nice to think otherwise, is a red herring (although I don't think deliberately so, we're just all like over-eager dogs with bones!) that originates from Drew Wagar and his 'Reclamation' story, so there's nothing to see there, unfortunately. He confirmed as much to us.