Please be advised that the iFly GPS software will work on Blue stacks, however it is not confirmed that the touch interaction will work, nor will the subscription modeling work.
Bluestacks does not assign a device ID, so there is no unique ID to assign to your iFly account, thus it will remain on a 5 minute mode. I demo'd this to possibility to Walter and Brian many, many months ago, but there are numerous bug and issues with this combo.
This Windows or Mac / Bluestacks scenario is not currently supported by iFly GPS app. It may be something they get fully working in the future, but not at this time. Just wanted to make sure you are all aware of this...