An anonymous reader writes "The laptop has undergone many changes over the past decade. At various times, netbooks, ultrabooks, and Chromebooks have been en vogue. Over the past several months, we've seen signs of the next step in the laptop's evolution: Android/Windows dual-boot laptops. Several companies have built these machines already, including Asus and its upcoming Transformer Book Duet TD300. However, neither Google nor Microsoft seem to want such an unholy marriage of operating systems, and they've both pressured Asus to kill off the dual-boot product lines. Asus has now complied. 'Google has little incentive to approve dual-OS models, since that could help Microsoft move into mobile devices where Android is dominant. ... Microsoft has its own reasons for not wanting to share space on computers with Google, particularly on business-oriented desktop and laptop PCs that could give the Internet giant an entry point into a Microsoft stronghold. Computer makers that make dual-OS machines risk jeopardizing a flow of marketing funds from Microsoft that are an important economic force in the low-margin PC business.'"