fatrachet
It's awesome for tiny things where the free quota is enough. I have about 15 small app engine web apps, most written in python/flask, that are mostly used either only by me or maybe by some of my friends. All small websites, web apps or tools with a few hundred loc each.
The datastore APIs are nice and simple if you don't need much, it's easy to deploy, no management, easy APIs for stuff like cron jobs etc. and completely free with no way to accidentally incur costs. I haven't found anything better for that.
AWS has most free tiers only for 1 year and if you accidentally go over the monthly free tier it costs you something. With heroku (or openshift) you need to set up and manage stuff like databases, memcache and many of the useful APIs appengine provides yourself.
While I can totally see many use cases where GAE is bad, for small free web apps its really nice and by far the best thing I'm aware of.
Most businesses won't touch anything related to bitcoin and things lacking a reliable SLA.
While a lot of people have unused storage space, many lack usable upload bandwidth and have low availability, so I would assume a lot of copies would be needed.
It's gonna be very interesting to see if stuff like this or storj, which was posted earlier today, can compete with current services.
But as someone with a lot of servers with unused space I sure hope so.
They worked on any PC I tried them on, but without GPU acceleration, although I had to install a VMWare MacOS enabler (that was bundled with the VM) because VMWare disallows OSX by default I believe, might be different with Virtualbox.
Also as far as I know once you get to something like 100Tb a month they will ask you or require you to upgrade. But thats still ridiculously high, the same would cost $12k on AWS.
*Edit: mixed higher and lower
I use it as backup and online storage, to host a few small shitty websites (behind cloudflare) and used to use it as a minecraft server.
While the CPU is a lot weaker than something like digitalocean, I generally need memory and storage a lot more.
It's quite interesting to watch cockpit cams and see the effect any little mistake or different line has on the lap time. You can also often see differences in brake balances between drivers and more on them during the race, can be really interesting if you pay attention to that.
I do know some people that use that for backups on picasa and flickr, which have unlimited storage and 1TB respectively.
This was over a year ago, not sure if it's still the case, just be sure not to rely solely on them.
A lot of tech writers and bloggers just write counter pieces to popular articles in the hope to get read, spread and shared by whoever dislikes or disagrees with the original article. It's become very common to see articles like "Why [insert yesterdays top HN post] is wrong/will never work/is flawed/..." on HN and reddit.