Please help identify Part 2

Here's a close up of the flower!

Very pretty, that plant is lucky that you rescued it.

Except for the difference in lighting/shading, I think we have a match here: http://davesgarden.com/pf/showimage/27400/

I agree--that's a wild petunia, a Ruellia.

Thanks everyone....the pic's of "Blue Shade" look exactly like my plant. No longer a mystery!