I hope this brings more support for ruby to Amazon EC2... I'd much rather hear about an acquisition rather than an investment, but maybe this is just the first step? Is that likely?
Exceedingly unlikely. EC2 will never be EngineYard. EC2 is when you want a raw box to configure how you want without having to deal with the capital involved in buying machines which will depreciate and such.
EC2 has great Ruby support - as good as any Linux distribution has. What you want is for EC2 to become managed hosting rather than having to administer the box yourself. Managed hosting is expensive. If you want managed hosting, you can't get EC2 pricing.
