I did for sure. I got Comic Jumper, Super Meat boy, Costume Quest, Outrun Online Arcade, plus some DLC. I hadn't really bought much on XBLA for a long time, then just sort of bought stuff in bulk.

I totally forgot that I had a card with like $70 to Gamestop so I bought $40 of Microsoft Points and Dragon Age: Origins. 
 
I promptly turned those points into The Lair of the Shadow Broker, Super Meat Boy (which I never would have bought had I not watched that quick look) and Costume Quest!  I haven't bought this much XBLA content in the 4 years I've owned my 360. 
 
Do I actually have to do anything to get my free points?  I can't even remember in what ways my XBox live account is linked to me.  Did I give them an email?

What I picked up this month: 
 
Various Game Room releases  
(bought Tower of Doom, Cosmic Commuter, and Radar Lock)  720pts  

Borderlands DLC: Claptrap's Robot Revolution  800pts 

Super Meat Boy  800pts  
 
Sonic & Knuckles  240pts

I bought Super Meat Boy (800), The Writer (560) and Guardian of Light (1200).

" I've had my 360 since the day it came out and i haven't spent 2400 over its entire lifetime. "

Alan Wake - The Writer, Dead Rising - 3 Costume Packs, and Sonic 4. Anyone got their points back?

I bought Kasumi and Overlord, Super Meat Boy and Peggle.  I haven't gotten my points back.  I bought Shadow Broker the day before they announced the October special -_-

I downloaded Super Meat Boy, Gunstar Heroes and Limbo, didn't get the 800 points back yet however but still holding up for the three week time frame.

I ended up buying:
-Costume Quest
-Undead Nightmare
-Lair of the Shadowbroker
 
I plan on using my 800 points to buy the Halo Reach map pack at the end of the month.

Got Super Meat Boy and all the Mass Effect 2 DLC. Still haven't gotten my points; are they going to email a voucher code?

Nope, I just didn't have the cash.

I sure did. I bought Super Meat Boy (amazing), Undead Nightmare (pretty decent), and Limbo (massively disappointing).

Oh yeah I have.

Costume Quest, Comic Jumper, and MASS AMOUNTS OF ROCK BAND DLC. Heck yes.

I did. Super Meat Boy, Costume Quest and some Rock Band DLC pushed me over 2400. Still no points, but they've still got time. Hope it's soon though, I want to use them on exporting Rock Band 2's set-list in to 3.

Spent more than that. 800 on Meat Boy. 1600 or was it 1200... on the DLC combo pack for RDR. And 1200 on Comic Jumper.