Worth noting that from a roadmap perspective the only differences between 0.9 and 1.0 are polish and *maybe* moving from QuickDraw to Quartz. As a result, if they feel that 0.9 is stable enough they could easily declare it 1.0 without breaking from their plans, even if it is partly a marketing move.
Camino is, and has been for a very long while, my main browser (though I also use Safari--Firefox is just too clunky for my taste), mainly on account of the combination of smooth operation, pleasant interface, and general stability. I won't say it's the best browser available, but it's certainly a good one.
1.0a has significantly improved the slow typing issue, so really the only biggies left in their "to do" list are spell checking and autofill. Better handling of pages with embedded Flash (also on their list) would be a big niceity (as is, the browser slows drastically when there's more than a couple animations on the page), but I'd say isn't as vital if they decide to push it back to 1.1 or something.
Here's hoping that the list gets shorter quickly so I can proudly install 1.0 after all these years of 0.x releases.