- Apple, MS and similar companies who buy patents and actually use them to make products.
- The Lodsys's of the world that use them as revenue sources and don't actually contribute any value to anyone.
In the blog post, Google is lumping everyone together, whereas Gruber disagrees.
Apple's patents that they've used against HTC and similar are for things that are remarkably unique - more unique than the Amazon 1-click patent and similar. Notably, they're not seeking out patents to use as weapons - it's likely, if not transparently obvious that they purchased the portfolios in question to remove the chance that those patents would be used against them.
I'm no friend of patent law (I think it should be reformed to function in a manner similar to real-estate property law), but I'm thinking that there is more nuance to this debate than "Gruber is a Google Hater".