My Lion concerns that make me hesitant:
-When you open a document from an encrypted image, does the versioning and resume save it publicly on the boot volume? Horrible if so. I resent the possibility of being forced to encrypt a whole volume just to protect myself from the OS's built-in "wheeee, let's duplicate data the user intended to have single secure versions of".
-With all this versioning and resume stuff, how can you know how much space your CURRENT data takes and how much of it is being eaten up by all the versions? At what point does OS X stop so you have X amount of Gigs free left on your drive? What's the process to clear ALL the versions and snapshots?
-One of the things that drives me nuts about Windows is that it makes the boot volume thrash/be accessed constantly. With all this version/resume stuff, I'm worried that my Mac is headed into the same arena of constant disk access. I mean, I'm used to knowing what's using my drive and why. Lion might make me wonder, "wtf is saving a version NOW?!" What if one works on 50MB files like in Photoshop? If it goes nuts creating versions and thrashing my drive, and slowing down what I'm CHOOSING to consciously do, I'm gonna scream.
-I do audio production. What if Lion starts doing a version snapshot while I'm recording multiple simultaneous tracks which is disk intensive? Is Lion the first version of OS X to be anti-audio production for potential performance issues?
-Drive mirroring. Will drive mirroring apps like SuperDuper! now have to take longer because it has to backup the bazillions of little version/resume files/snapshots? What if I just want to make a CURRENT snapshot forgoing all the history bits? If my concern of earlier has a solution, am I know forced to manually clear the history before a cron'd backup schedule kicks in?
Security. Performance. Multitasking and no flippin' mysteries surrounding peripheral and cpu activity. That's the way I like to compute. These are big failure points for Windows which keeps me on Macs. I don't know if Lion won't mess all this up, so I'm clinging to Snow Leopard wondering if we'll have a long-term relationship.