Deploy a lambda function in multiple regions (15 regions!) with just one bash script using Apex up.
Add route53 on top with Latency Based Routing enabled and you've a latency in 10s of millsecond from anywhere on the globe without paying a hefty fee for this kind of latency.
I think Dart was a result of optimizing JavaScript VM and learning about the cons of language which are hard to optimize for JS VM then getting rid of them.
Even Amazon's music search sucks. It can never find the song unless you provide an accurate name. Its fuzzy matching sucks too, doesn't even account for regional trend in songs.