Brian McTaggart has some camp notes for us (and here and here):
Invited to Major-League Spring Camp:
In that third link, we find the Astros have signed another outfielder, 29-year old Austin native Justin Ruggiano. Ruggiano has played in parts of three seasons (07, 08, 11) with Tampa Bay, hitting a combined .226/.262/.359, but posting a career-high .248/.273/.400 in 111 PAs with the Rays in 2011.
In five seasons at Triple-A, Ruggiano has hit .289/.362/.473 with 546K:188BB, and 68HR in 2064 PAs.