I read that one, and sent an email to both before using their game.
I have seen a tweet from Ed reposting the App Store link,
and it was cool that he liked it (I know he must have played it)

Played DX Ball as well, but I do think it was inspired by MBall, (if not the same author).
I'm a long time Breakout fan and did my own for two platforms.
I have gone a little bit further with my native iOS one.
There are spinning wheels and teleporters, etc on the play field,
that interact with the ball.. was trying to make it feel like a pinball machine.
No drop down power ups, they are all from hitting targets.
But I do not yet have the bricks that interact with each other
exploding bricks in patterns that cause the chain reaction, are something
you look forward to in MBall.