Yesterday the retail and cloud behemoth Amazon made an announcement regarding a new service that they're offering for developers called Amazon Simple Workflow (SWF). Now I don't often write about public cloud offerings (in fact I may never have done it), and I wouldn't consider myself a developer in the traditional sense but I thought that this was noteworthy. Normally I write about virtualisation infrastructures / technologies but what's interesting about this is that it's clearly targeted at enabling complex and / or large applications to run in Amazon's cloud offerings. Amazon's own CTO, Werner Vogels, describes SWF as: an orchestration service…