Agreed. I now use Google Voice for everything, and don't even give my cell phone number out anymore.

One thing I love about Google Voice: a month ago, I was getting solicitation calls from the same number every few days. I just went into GV, into the call log, and blocked the number. One of many things I love about it, in addition to the visual voicemail, personalized outgoing messages, integration with my GMail contacts, and much more.

Plus, on Android you can actually use a Google Voice app