You would have to do all the Field-Ops up to August 9, 2010, to get only one of the both uniforms (Alpha or Delta) and until November 2, 2010, to get every piece of Clothing (excludes earpiece), or November 9 for everything.
On August 23, 2010, the gear got an update releasing a new type of gear called Tactical.
If you dance with the full Tactical Gear on, you will roll around/flip.
On November 9, 2010, the new Comm Gear was added.
If you wear the full Tactical Gear and change your pin, you will immediately roll around/flip without clicking dance.
If you wear the full Comm Gear and when you dance, you pull out a computer, you type on it, a large satellite that will spin, and a smaller satellite that gives signal.
On January 14, 2011, the Tech gear was added.
If you wear the full Tech set and dance, you put down your Tech Book 3000, open it up, then you make a hologram appear above the Tech Book 3000.