Can anyone point me to any useful information regarding how to optimize a business for being featured in the Google "7 Pack" - Maps listings for a given search term?

It seems like the steps are as follows:

1. Get listed everywhere.
2. Make sure your listing is 100% complete - and detailed to the extent possible.
3. Make sure customer are leaving reviews on Google Places, plus other platforms where your business is listed.
4. Make sure you're getting approximately 17 million metric shit tons of reviews in the process.

Am I missing something?