Hi, I've bought and been using Office 2008. Haven't really had compatibility issues as I've set the option to save as Office 2004 (fro Mac) or 2003 (for Win) in the preferences. I'm also an iWork user. I prefer Pages over Word, but Excel over Numbers. I'm a heavy Excel user and found that the interface and functions are not as intuitive in Numbers as it is in Excel. I've used Excel for years, but I'm looking forward to the next version of Numbers as I know they will improve the specific issues I have with it. My take on Office 2008: not really a to die for update. I still have Office 2004 loaded and still go back to use it from time to time. What does this say? Word 2008, improves the creation of blocks and smart graphics, which is missing in Pages. This could be a useful tool. If you don't have Office 2004 and still on V.x, get 2008, else stay where you are until there are a few updates. Word and Excel are also not stable, but then again this is Microsoft.