If it walks like a duck and quacks like a duck, it must be a duck. Apparently, ducks have nothing in common with Windows Service Packs. Microsoft released SP1 for Windows 7 back in 2011 and has only released patches since then, which means you will have to five years of updates after a fresh install of Windows 7 SP1. What a pain.
Microsoft has recently announced something they call the Windows 7 SP1 convenience roll-up. The rollup includes all "security and non-security fixes" since the release of Windows Service Pack 1. This means those five years of updates are all included in a single installation. That sure sounds like a Service Pack to me. No matter what you call it, installations of Windows 7 will be much faster in the future.
In unrelated news, I will be too busy over the next couple of weeks to do any blogging. Look for the posts to resume in the beginning of June.