Seven months after the first iMacs shipped with Thunderbolt, there are only a couple of Thunderbolt-capable peripherals available. Why? At Macworld, Joel Mathis looks into that question, suggesting that the problem revolves around Thunderbolt’s complexity and cost. follow link
Enabling Auto Spelling Correction in Snow Leopard
In Snow Leopard, the automatic spelling correction in applications is not usually activated by default. To turn it on, make sure the cursor's insertion point is somewhere where text can be entered, and either choose Edit > Spelling and Grammar > Correct Spelling Automatically or, if the Edit menu's submenu doesn't have what you need, Control-click where you're typing and choose Spelling and Grammar > Correct Spelling Automatically from the contextual menu that appears. The latter approach is particularly likely to be necessary in Safari and other WebKit-based applications, like Mailplane.
Where Are the Thunderbolt Devices?