Request for review of proposed map client and location storage solutions

I'm building a set of baseline Drupal features, Debut, and as part of that am needing to standardize on leading Drupal solutions for various areas, including map display and geographic data storage.

Feedback requested for:

• Standardize on Geo as location storage solution
• Standardize on OpenLayers as map client solution

Please provide any insights etc. as comments on those issues.

Thanks!