Hello,
I like the piriform products CCleaner and Recuva very much.
But Defraggler looks for me just like another defragmenter. There is currently nothing special about it.
What I want to say is: Add that little spice to the program that makes it different/special.
If defraggler would implement some cool intelligent defrag technique, then it will become interesting.
An example for this could be the intelligent sorting of files based on size or usage.
Big files or seldom used files would be considered "Space Hogs" and moved to the end of the partition.
To cut a long story short: Look very closely at what JKDefrag does (and its different options) and get the idea:
http://www.kessels.com/JkDefrag/
Please also look closely to the Section "What are SpaceHogs?"
I would like to see a nice configurable defragger with the intelligence of jkdefrag. On offline defrag of the xp locked files (mft,$secure,pagefile,registry) (in XP start phase) would be ultracool.