3G and a bag of chips...

Are we really there yet, speed-wise?  It's kinda funny...for us that have used smart phones for a LONG time, we are just used to the speeds.  3G was a BIG step up.  But I saw this on YouTube, and it got me wondering a bit:

When will mobile speeds be up to snuff for the general cable user?  Or does it even make a difference?  Do we need REALLY fast speed on mobile devices?  Most of us are pretty smart about what we do and the packets we push when on our phones, but maybe for mass consumption of data (ie, the mobile web) we really DO need faster speeds...