1. We're using all of our own hardware, co-located in good datacenters with high quality internet providers. I've been building and deploying servers around the world for over a decade, so I have some strong opinions on this. We may also use rented dedicated servers in similar facilities during the public beta, but that's temporary. Uptimes will be comparable.
2. You can forward different external ports to the same internal ports on apps (e.g. port 31245 -> port 22 on your Ubuntu app). You can also launch VPN server and then ssh to your servers from inside your virtual LAN :-)
Web traffic is handled by the Portal system, so port 80 and 443 are "intercepted" by default. They proxy HTTP traffic to your apps based on the paths that you specify. You can forward /blog to one WordPress instance and /otherblog to another WordPress instance.
3. The compute power levels are meant to be relative to standard usage, but benchmarks are probably better for hackers, so we'll do that.
4. Thank you!
Great feedback, thank you!