Trunk, Thanks for putting that together. I currently own the Panasonic GX1, Sony Nex 5N, and the Olypmus E-PM1 and have used the Olympus and Panasonic For skydiving and wanted to add my thoughts:
Panasonic (with 14mm Pancake lens) - My current favorite of the ones i've tried it has the best remote connection and controls and the pictures turn out well. Pros: Good external controls - as well as menus within the camera. Best remote connection. Cons: Heaviest of them all(but still lighter than a DSLR). Battery and card door are on the bottom - if you are using this for work and have to give an editor your SD card this could be an issue. Really right stuff makes a nice plate for this camera that allows access.
Get Hypoxic just started offering a remote adapter, or you can put one together with a 2.5 mm to 2.5 mm Female adapter from radio shack and a cord off of a cheap remote you can find on amazon - no splicing or cutting of wires involved just plug and play(I have the link if anyone needs it).
Olympus(with 14mm pancake lens): Pros: Good photos, Fast FPS Cons: User interface isn't that great, can't use the remote with some settings. Remote connection is not very good - I had to stop using mine because the connector kept coming out in freefall. Card/Battery door on bottom.
Used the same thing to make a switch adapter 2.5 to 2.5 mm female from radio shack and a remote cord from a camera switch for olympus(no cutting or splicing just plug and play).
Sony NEX 5N (haven't used this in freefall yet) Pros: Best photos of the bunch(but not by much), Fast FPS, Lightweight (olympus is lighter). Best video options (1080p at 60fps) . Cons: In menu camera system (I like external controls). Have to have the camera switch installed (i'm not willing to do that). Lenses are heavy - not as a good a selection yet as the M43 system either. Card/Battery door on bottom.
Overall Recommendations: Panasonic if you want a camera that has a no hassle remote option and takes good pictures.
Olympus if you are going for the lightest possible setup - Tape the connector in and never take it out (or find someone to make a right angle connector)
Sony: Only if you are a fan of sony's and this camera and don't mind spending the time or the money to modify it (I am not). I plan to use it for high quality video in freefall when I need a step up from my CX110 or go pro. (Google Sony NEX 5n video and see what some people are doing with this camera for normal cinematography)
(This post was edited by skysark21z on Oct 4, 2012, 2:57 PM)