This could be an amazing tool for anyone developing JavaScript. “Proxino catches Javascript exceptions in scripts we dynamically proxy. We notify you about these exceptions over email and through our dashboard.” They also minify and serve JS, which is far less important to my mind.
debugging
Debugging the HTML5 Filesystem API
List of bookmarklets for mobile debugging
MacGDBp: A Remote PHP Debugger for OS X
Blue Static has released MacGDBp, “a native Cocoa application that allows Web developers to debug their PHP applications.” The tool utilizes the Xdebug PHP extension to connect to the running PHP app so the developer can step through their code, add breakpoints and see the local variables and function call stacks all within an OS X interface.
I can’t wait to try the app, though I do wish they would have chosen a name that is a bit more pronounceable.