Is anybody solving really cool problems anymore?
ible: I'd love to have most of the things you mention, and some are on their way such self driving cars but there is lots of interesting work out there
How about 
- pranav mistry's sixth sense project
- bio printers creating organs with ink jets
- combinatorial genomics
- google street view (still blows me away to check out a friend's new place in NZ from my couch in Canada)
- photosynth
- Self replicating 3d printers
- open source UAVs/autonomous helicoptersand that's just off the top of my head. I remember being prett impressed by the last 'what are you working on' thread as well.  
- combinatorial genomics
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