Google followed up their incremental update to Google Maps with an update to the Google Mobile App. The new version is 3.9.7 which brings us a few ticks closer to v4. Still it has been over 3 months since the last update to v3.9.6. My guess is it is just a couple bug fixes but there is no change log to confirm. Let us know if you spot anything in the comments!
You can pick up the update at m.google.com/search from your BlackBerry
Thanks Tom and Nikolaus for the tip!