Thanks to author and programmer Mike Ash for this developer-focused explanation of Apple’s move to the 64-bit A7 chip in the iPhone 5s. In short, although details will vary by app, 64-bit code that takes advantage of new programming techniques can be faster and use less memory (though 64-bit apps use more memory in general). Plus, old 32-bit code can run on the A7 with no changes or performance penalty.follow link
ChronoSync Secret Menubar Shortcut
For a quick way to run a ChronoSync document without opening it, use the ChronoSync menu in the menubar. Select "Show ChronoSync menu in menubar" in ChronoSync's General Preferences window to activate the menu bar menu. Once activated, you'll see the ChronoSync circling arrows icon in the menu bar, at the top right of your screen.
You can open any scheduled ChronoSync document directly from the menu bar. If you hold down the Option key while selecting a ChronoSync document, the synchronization will run immediately without the ChronoSync document opening.
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- ExtraBITS for 07 October 2013 (07 Oct 13)
What 64-bit Support in iPhone 5s Really Means