I read all the disadvantages, but basically will need it just to transfer to a notebook's directory in "real-time". "Real-time", as in any duration below 30s will do, anyway I shoot in full res but Large quality and not fine (so probably about what...4MB per file?)
Pro X2 got ad-hoc, will just get that. Else putting a router no issue. ie in a HDB flat, I shoot at the door, router plug in to power in the living room, and then notebook accesses router. This helps transmission distances. (I can get the high power routers + antennas, USB adapters + antennas to boost range, no issue I am tech inclined in this and have the experience). Limiting factor would be the Eye Fi card wireless hardware but performance can be boosted with the router.
Say I get D7000, that has 2 SD slots so I will be writing data to 1 slot, the other slot houses the Eye Fi Pro X2 which transmits wirelessly plus also saves another copy of the images on the card.
ie Usage is just purely to transfer files to the notebook in "real time" (eg within 30s). Notebook would be Win 7.
Any practical comments on the system?