the way you hear Madonna explain the concept behind the 4 Minutes video in the first minute or so of the MIX 106.5 interview makes you appreciate it more: it's an interesting theme, I kind of just wish it was made more explicit and maybe that the song's lyrics could have better reflected the idea behind it. Oh well, good stuff nonetheless.
Also, I don't know what to make of the reviews - they're all mostly positive but they share the same complaints about production, etc. of much of the last half of the album. Then again, Confessions got about the same critical reception and it was a great album soooo we'll see