Shotput is a simple program that offloads the data from your p2 cards and that’s pretty much it. It doesn’t help in the editing process, although it’s a great and handy application for out in the field. It does not matter if the data on the p2 cards is stored in AVC-I or DVCPro HD (or dv50 or dv). So yes, Shotput supports AVC-I.
I don’t have experience with HDLog and LTO tape, but I have used P2 Log Pro, which is HD Logs little sibling. In all honestly, it does the job, but the interface is just okay. It’s kind of clunky, but it does definitely work.
MXF4QT is totally totally cool. The only down side is that there’s no native AVC-I workflow implemented on the Mac for FCP yet so I can only use MXF4QT Import on DVCPro HD jobs. MXF4QT does work with AVC-I, but FCP decodes the material as 8 bit RGB instead of 10 bit YUV. This is not the fault of MXF4QT, but rather quicktime/FCP. Native AVC-I support will have to come from Apple and I encourage you to send feedback to allow native AVC-I editing within FCP. This will speed up a lot of workflows.
https://www.apple.com/feedback/finalcutpro.html
Hope this helps.
Jeremy