well, I am not getting a barograph. this is 2015, after all

so the low-cost choices seem to be (correct me if I'm wrong):

Fly WithCE (needs windows, but I guess I can install Parallels on my Mac)
EW Microrecorders (looks like a Hayes Modem from 1982)
LXNAV Nano (seems to be my favorite choice right now)

they are all within my price range

can any of these devices act as a high-res GPS source for an iPad running, say, Foreflight or one of the soaring apps, either over bluetooth or USB?

thanks!