Jeff asked me what I was working on, and I told him about Thunderscan, which he seemed to be interested in. But when I mentioned that I was about to start some experiments with an application switching utility, his jaw dropped, and he looked like he couldn't believe what I said.
"That's just what we wanted to talk with you about!", he exclaimed, "It's great that you're already working on it".
Jeff explained that Microsoft had put a lot of effort into getting their applications to run well in the tiny space available in the 128K Macintosh, which they considered to be a key competitive advantage. But as things stood, the 512K Mac would undermine their efforts, since it allowed applications to be much larger. Plus, Lotus had recently announced an integrated application suite for the 512K Macintosh called Jazz that made it easy to quickly switch between different functional areas. But if the Macintosh could run multiple applications simultaneously, the small memory footprint of the Microsoft apps would continue to be advantageous, since their lower memory requirements meant that more of them could run concurrently, and users could put together customized application suites on their own. The purpose of the visit was to convince me to write an applications switcher under contract to Microsoft.