Boingo sent me the Android apk, which admittedly has not been tested on the edge, so I could see whether I could get it to work.
I've tried installing both versions on the edge (one is "no maps", not sure what that means) but both are giving me the error message "cannot be installed on your edge." I think I've gotten this message before on apps that other people have actually got working on their machines, so I wondered whether anyone wanted to try out the apk files and see whether it works for them.
I'm working on FTPing these files to a site for download (Boingo said it was OK to share the files with other edgers) but everything's a little slow as I do things for the first time on the egde.

In the mean time, just send me a private message here, an email, or a shout on twitter if you want the apks emailed to you. Then, I'd appreciate your feedback so I know whether it's just me, or whether the file isn't working.
Update: Here are the files directly:
https://www.strongspace.com/rainsber...wi-fi15686.apk
https://www.strongspace.com/rainsber...omaps15684.apk
Thanks,
Sarah.