The annual Microsoft Build developers officially conference kicks off today -- but the tech giant has already revealed a laundry list of AI-centric hardware news. In a jam-packed Monday press conference, Microsoft unveiled one of the biggest changes to the Windows PC landscape in a long time. Copilot PCs, led by new Surface Laptop and Surface Pro models, are a promising new line of computers powered by Qualcomm Arm chips that enable significantly improved battery life without (if Microsoft is to be believed) the performance and compatibility compromises that have afflicted earlier Windows-on-Arm iterations over the past dozen or so years. So what else does Microsoft have up its sleeve this week? With the hardware and Windows 11 news already on the board, CEO Satya Nadella and crew can provide even more detail on how the company's OpenAI partnership will further develop, and how Redmond will continue to counter Google's Gemini upgrades which were announced just last week.