I'm surprised you've kept the name pipedream for so long, considering the fact it is also a brand of adult toys makes searching the word pipedream not exactly "safe for work"
We are #1 in most searches now but we do see an occasional image which can be surprising. We love the name so it’s not changing!
I would be prepared if I were you, since if someone like Microsoft can loose the name Skydrive to a news station, I think your odds against a nearly 50 year old company probably aren't good