On Wednesday Tech Digest has been cordially invited to an Apple event called "The spotlight turns to notebooks". There have been plenty of rumours swirling around regarding a cheap, netbook-y, Macbook arriving, but over the weekend a few more details surfaced about what we're likely to see. Firstly, it's now pretty much given that Apple are going to dump Intel's integrated graphics chipsets in favour of NVidia's MCP79 platform. Don't worry - I'm not expecting you to know what that is off the top of your head. Basically, the NVidia chipset is smaller, faster and more versatile than Intel's integrated graphics chips...