I wrote this elsewhere; it summarizes my opinion. I'll just add that, in addition to the below, Google also simply needs to allow sufficient time for such a new paradigm (albeit an amalgam of many separate, older, established paradigms) to gain adoption.<p>--<p>I find this quite disappointing. Wave as a concept -- and apparently its underlying implementation -- is brilliant. It pretty much exactly fixes a number of significant barriers I've repeatedly, persistently encountered in professional, collaborative communication.<p>However, in a fashion that's becoming all too typical for Google, the user interface was spartan and disjointed to the point of outright sucking for anyone who was not an "uebergeek" already at least passingly familiar with the paradigms they were using.<p>Just like with their Android Nexus phone: They didn't need to improve the technology further as much as they needed to make it usable for the common user. In the phone's case, that meant real customer support. In Wave's case, that meant a meaningful, obvious user interface and much less spartan documentation, including non-linear textual references and not just so many overcute, time-consuming, and shared-environment-adverse videos many of which were broken into frustratingly small snippets. The videos did, I suppose, demonstrate the dynamic interface better than a bunch of text and static pictures might, but then this was in significant part the fault of the interface that gave no visual indicators of what to click or drag, much less what doing so would accomplish.<p>Google really should give Wave more time, and devote a small cadre of staff to fixing the UI, and another small cadre of staff to some coherent, consistent promotion and public training/documentation. Once people grasp what it can do and how to do it in a quick, intuitive fashion, I argue they would have users aplenty. They've already added it as a beta feature to their Google Apps online office software suite. That crowd is ripe for adoption, if adoption is made straightforward.