So, I’ve made the jump. Initial impressions:
1. Most changes are incremental. Mission control seems nice, full-screen mode is nice for some applications; haven’t yet tried airdrop.
2. The faux leather / physical object skin for iCal and Adressbook is annoying and silly. SRSLY, Apple?
3. The biggest positive change so far is Mail: GMail-like conversations, and — if you pick the right options in the preference menu — automatic retrieval of archived e-mails. My current setup: Using rules, I store a backup copy of each incoming message in an archive folder. I rigorously delete things that I’ve seen from my inbox. If a thread is revived, Mail.app will pull the thread together from my archive folders. Yay, finally! The other important addition to Mail.app is, well, speed: The search is now usable even for large archive folders.
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