I need to replace a 15-year-old Dell laptop, and want to do so with the next generation MacBook Air. And while my budget is limited, I am determined to stretch my dollars and wait out the MacBook Air Retina that is reportedly coming. I recognize there are some risks with a significantly new iteration, but I want to be cutting edge for a change and expect this new product to be a significant leap in technology. But my question is on software. With just about everything in the working world revolving around Microsoft Word, Excel, and Powerpoint, will the likely bundled software on a MacBook Air Retina of Pages, Numbers, and Keynote be adequate such that I do not need to further invest in Microsoft Office for Mac? How seamless is the purported compatibility between the Mac word processing, spreadsheet, and electronic presentation program products as bundled and the Microsoft Office standards? Thanks.