I think desktop control panel search for updates triggers the store to look for them also. That is how I got several systems updated yesterday including my RT.
I like my Surface RT...use it everyday. Sometimes I go to my Office Top. I bought it fully realizing it was an exercise and a beginning to something new. I bought a second one and it will remain...
T-Mobile was quick to release the Portico update for my 8X over the air. I suspect the same will hold true down the road of Blue.
Seems to me the 64gb Surface makes sense in a zero data scenario....but no its not enough to all the talking heads.