This is why I won't rely on Google Voice for anything important - if they won't make it a paid service with some additional features, that means it's a cost center that could go away at any time.

Heck, I'd happily pay for Google Voice with the addition of fax capabilities (even if it was receive-only), particularly since my online faxing service was bought out by eFax (feh) and at the next renewal will jack up from $15/year to $85/year (bye!). I'd happily pay multiples of how much I was previously paying to be an actual /customer/ who gets that kind of services.