Pipes v. Seeds

I’ve been asked if Yahoo Pipes is like FeedSeeder.

Sorta. Both merge multiple feeds and allow a level of filtering on the results within a browser-based interface. Though, that description includes quite a few other projects as well. So, I thought a Q&A would be a better way to compare and contrast [P]ipes and [F]eedSeeder.

Does it create really cool diagrams?
P: Yes
F: No

Is it useful to Garrick?
P: No
F: Yes

Is it free?
P: Yes
F: No

Is it live?
P: Yes
F: No