Having the ability to log into and create a "My Data.gov" dashboard for local agencies would be awesome! Here's some ideas of how this would help:
This could create the opportunity to have some type of link to local data through the data.gov site.
Local agencies could flag or favorite data sets they commonly use
If Data.gov some day offers training on data use and development, this would allow for administration and tracking of that training
Locals could possibly use the platform to interact with other agencies