I normally use Gears without problem in Safari and in multiple Firefox profiles. Each has its own copy of the gears database being used.
I just came across Fluid ( http://fluidapp.com/ ), which gives site specific browsing -- in other words, a dedicated "browser app" for each webapp that you use. The goal is to make each web app look/behave like separate normal apps, each with their own windows, own behavior, etc. Except that any use of gears falls in the Safari gears database. Is the gears database safe from multiple browsers accessing the SAME database at the same time? Does the SQL engine in the gears plugin have any sort of protection against concurrent updating of the database/locking in place, or does it just protect the apps within that browser from each other? Can I have one site specific browser hitting Gmail, and another hitting Docs? No trouble with a master database index? What if I have two separate browsers hitting Docs -- accessing different documents (one for work, one for hobbies), but the same Doclist and Documents database being access by two different plugins running in two different browsers? Will this be safe; will it "look ok" until disaster strikes?
