Chromebooks have been improving at a decent rate. Both Dell and HP are trying to move them upmarket for higher end and business users. They are getting better CPUs, better specifications, better build quality, and pretty recently android apps. It's an interesting model. Linux kernel, thin OS, and a sandbox for android apps. So while the market share of chrome OS isn't huge, the marketshare of android is. So suddenly you can get neflix, hulu, pandora, several browsers, games, apps, ssh clients, mail clients, etc. Seems like a decent step up security wise from linux where each app you use can read 100% of your files.
Seems like if you continue on this trajectory you might well have a macbook pro replacement in a generation or two. It might well not be an x86 (the qualcom 835 is looking pretty promising), but not sure anyone will care.
I've not seen a chromebook with 32GB ram, yet. HP already sells a chromebook with 16GB ram.