1. Android (even though I'm an iPhone snob...). Definitely impressed with what they've done, although they rely on 3rd party hardware manufacturers to ensure a seamless experience. It's tough not to have an Android device if you're using Gmail and Google Docs religiously. Which brings us to the next point...

2. Google Apps for business could start to offer some great benefits to startups, as you can collaborate more easily and tap into things like Google Analytics, etc. from one centralized location.