Pieroxy writes "The W3C is proposing a set of new rules for CSS prefixing by browser vendors. This would greatly mitigate the problem caused today where vendor specific prefixing is seeing its way through production sites. The problem is so bad that some vendors are now tempted to support other browsers' prefixing. The article also has a link to an email from Mozilla's Henri Sivonen that does a nice job of addressing many potential issues and shortcomings of this new proposal."
I was under the impression that browser prefixes existed to allow use of experimental CSS features before standardization; just ditching the vendor prefix seems like a step backward.