[girvo]

Codebug for the Mac isn't time travelling, but coupled with Xdebug and some break points it'll drop you into an interactive console at various points you want to explore. I'm hooked :)

[mgkimsal]

phpstorm and intellij are enough for me already, but would love the 'time traveling' aspect (I think of it more like a code DVR).

chronon works OK for java, but I do grails work, and the groovy metaprogramming stuff isn't supported in chronon.