I'm a sucker for a pretty face!
So far so good with these tools. The query tool bombed once on a full text query, otherwise things are good. The query type-space is small, but it does a cleaner job of keeping history of previous queries than TOAD, and the online help for MySQL is terrific, so I forgive it.
TOAD dies on me constantly, and has these weird quirks about selecting the SQL statement before execution. It's been a non-starter from the beginning. MyPHPAdmin is impressive, but it's support for full-text indexes is strangely limited.
These prettier tools seem to have been out a year, and I hope (but never count on) the open source community will slowly fix the issues. Could be a great thing, but right now it's a step up.
We can't all be of Microsoft's quality (he says reservedly, crossing his fingers in hopes the browser doesn't crash as he posts this...)