It's strange that their front page is so quiet but in April they co-hosted an angel investor summit with the National Angel Association:
http://www.propelsj.com/angelsummit/

In May they announced a city-wide free Wifi strategy called 'freespots':
http://www.enterprisesj.com/en/admin/data/docs/06-05-01-WiFi-freespot-Brand-Media-Release.pdf#search=%22propelsj%22

The first 4 companies incubated were Brovada, VoteMail, Mariner Partners and Maximum RPM. I believe they had over 12 companies incubated/launched the last time I checked but Jeff would know more (info@propelsj.com /
tel:(506) 642-9029).