Appears there are quite a few Meshies using them. Since they can do sooooo much, it's time for a general discussion thread on their use. The functionality appears to be split among two areas; hardware (Grandstream) specific... and Android specifics.
I just added an advanced hints page on my website:
along with the general operation/setup page:
Let's start a central discussion place here for all to contribute to.
There's quite a few things I haven't tried, like conference calling via address.