I bought SkyLog Pro, unfortunately. As soon as I have more time I will transfer to something better.Its not worth the money and is years out of date in terms of the style of its GUI.
It also seems to have very limited import/export, the pocket PC "conduit" is far from straightforward to setup (and it doesn't leave your log data on the pocket pc) the reports are inflexible, the data entry is clunky, I could go on...
Basically its little more than a very rudimentary database application, absoultely no sophistication about it.