It has only been a couple of days since I reviewed Robot Rampage, but  the developers have already added a lot to it.  Besides incorporating the latest version of OpenFeint, here is what else you can find in the update:

Campaign mode has been extended with 5 new missions and new gameplay features.
Added “Protect”, a completely new endless game mode.
A new “Rail Cannon” turret is available to buy in the shipyard.
A new “Emergency Battery” upgrade can be bought from the shipyard.
Power generators can now be upgraded.
Enemy waves in endless modes have been completely rebalanced.
New OpenFeint achievements and leaderboards.
Bug and crash fixes.
Looks like some of my suggestions have already been implemented.  This doesn’t reflect that they listened to me though.  What it shows is that the developers listen, adapt, improve, and care.  This isn’t going to be one of those games that get stale because the developers don’t listen to feedback.  So kudos to the Origin8 team!