might work
Could certainly have a market. I've been involved with similar projects in the past, as I'm sure many other developers have.
Google wants to track your staff, and let you know where they are as well as what they're supposed to be doing, with a cloudy dispatch system called Google Maps Coordinate All the employees need is an Android app which will show them the list of outstanding jobs, and let them opt out of the real-time tracking when they're …
..they haven't done the usual.
Create as free beta for x number of years.
then
a) if enough people use it, slam on some bloody high charges, but as people are using it a lot, they have little choice.
b) not enough people willing to accept above. Bin it.
That said, why would you sign up to pay £9 / month / user with the caveat of "we'll decide how much it's going to cost once you've tested it for us"?
"....we wouldn't put it past the Googleplex to expect all participants to be signed up to Google+."
A fair guess. I'm already thinking that the number of times the Choccy lads' various offerings try to push G+ when I'm using 'em is beginning to look suspiciously like the actions of an organisation in abject panic.
At least I can ignore Farcebook and Twatter without other applications spamming me about how much I'm missing out all the time.
I mean really, screwing it up in the first sentence...
"Google wants to track your staff,"
As The Register printer last week:
http://www.theregister.co.uk/2012/06/21/google_launches_coordinate/
"Chu talked up privacy, insisting that all location data is fully encrypted at rest and never shared with Google."
Still nice try.