[deepsun]

To be honest, Wave didn't have any momentum at all, it was dead mere weeks after release. No one cared. Besides marketing-avid people. They try to keep their business a startup, and that's ok.

Likewise, you won't blame Clubhouse for closing their product.

But Google did close some very used products, with tons of momentum, among my favorite are Picasa and Reader.

[notreallyserio]

> Wave didn't have any momentum at all, it was dead mere weeks after release.

That's what happens when you make a collaborative tool invite only and severely limited the number of invites you can send out. What a truly bizarre choice.

[deepsun]

Worked extremely well with GMail.

[Sophira]

GMail is not a closed platform like Wave was, though. In fact, it's one of the few tools Google offer that's designed to let you communicate with people who aren't on a Google platform.