@MagicTH
10.7.5 largely introduces to Lion holdouts the updates that ML users received in 10.8.2. The two patches were released on the same day, with supplemental patches also applied to both on the same day.
We've already discussed that other browsers DO have the same issue, just not to such an extent. Chrome suffers from the same exact issues.
What we've also done is narrow down the symptoms to only occurring while dual-gpu macs are using integrated graphics. Single GPU macs, whether integrated or discrete, do not seem to suffer from this issue.
Since 8.2 and 7.5 were so closely related, it is not outside the realm of possibility for a 7.6 to be released alongside 8.3 which brings whatever patches that fix this issue to Lion users.
@Shawn
I honestly don't think this is ALL apple's fault, unlike the maps debacle. I think this is a classic issue of pass-the-buck between apple and the gpu manu's (AMD and NVidia), plus now intel gets thrown in since they make the integrated gpus. Every company has its priorities, and this would certainly not be the first time that gpu manufacturers snub a non-windows/PC product that they supposedly once supported.
Since the new MBPs don't have optimus branding (NVidia's proprietary graphics-switching implementation) its very likely that apple had to engineer their own solution, and also likely that they had to do so without much help from NVidia.
Maps was, and remains, borked from the core. This implementation largely works fine. I haven't heard the old audio crackling problem that was also related to this for a while now, and besides safari and chrome, nothing else is giving graphical glitches. I don't think this really warrants a press release. Maybe...maybe a bullet on the release notes, but that's about it imo.
On a separate note, I've been using firefox aurora since this issue reared its visage on my system. It's been wonderful, as the latest versions seem not to suffer from memory leaks anymore. Compared to safari, firefox is more standards-compliant with a nearly identical featureset, and a far larger extension library. Downthemall is pretty hard to compete with.
I dunno...but any future version of safari's gonna have a hard sale to get me to switch back from aurora. That's just me though, and at this moment. I'd like to hear any and all counterarguments because I'm always looking for better solutions =).