Halo spartan assault is on the Red Stripe Deals on WP8 for 1.99 it is also 1.99 on win8 store and will be at 4.99 permanently on those after the promotion.... not sure about XBox I haven't checked
I believe this is a rather good deal for the game....
also I dug up a slideshow about future improvement of internet connection (it took me a while it is 3 years old) by nokia simens network... it gives you an outlook on the future capabilities we should have for internet and how it will be possible to leverage it for cloud services (not graphic computation especially) and how it will take nowhere close to 10 years and certainly not 20 years to reach that point, just because of the ever increasing customer needs...
http://www.slideshare.net/zahidtg/what-is-coming-next-after-lte-and-imtadvanced