Windows/Mac/Linux (Adobe AIR): Waver allows you to keep a single-column view of Google Wave open on your desktop at all times from which you can read, compose, and keep an eye on what’s happening in your Wave inbox.
We’ve featured ways to keep on top of your Wave inbox before, but if you’re not the type to keep things open in your browser (or you don’t use Firefox), free Wave client Waver is a decent alternative. The client is merely a standalone version of Google Wave’s mobile interface, but it works perfectly as a compact, out-of-the-way client. You can view your inbox, search for waves, view them, reply to them, create new ones and even manage your Wave contacts, all from inside the app.
Waver isn’t the only Site-Specific Browser (SSB) to integrate with Wave. For those that want a full, multi-column Wave-focused client, free app Waveboard aims to tightly integrate Wave with OS X, adding, for example, support for Growl notifications.
Waver is a free download for all platforms, and requires Adobe AIR.