Hi,
I got my 604 WIFI a week ago.
Positive opinion:
Fantasic sensitive screen, audio delivery is great and overall quality and manufacturing standards are high. Design is very convenient since it provides the sensitive screen which I thing key to the use of the PMP.
WIFI works perfectly, and setup, to my surprise was fairly easy as long as you know the numbers... WAP/WEP and other mystirious and odd codes.
I have not experienced many different WIFI accesses besides the one at home, but from what I have been told it seems to be fairly reliable and not too treacky.
Internet access is performing very well. Obviously surfing on a 4.3' screen is not as convenient as what you expect from you portable but quite effective for simple mail check/write/send operations. Zooming and writing with the virtual keyboard is fairly convenient.
Connections to the PC is OK and it does not require any thing else besides the plugging of the USB 2 cord.It's recognize as a mass drive if you require so, and all operations in and out to the 604 are handled through the PC
with very staightforward file exchange features (whatever the type Music or picture).
Very neet picture views with bright screen delivery. Convenient Zoom I believe 5 times. Realy a nice and efficient way to check the pictures quality, but Jpeg only.
Weight/size issue: to my surprise I gym with the 604 in my pocket with no trouble. Obviously twice the Ipod weight, but not a real probleme to me at least.
Battery life is fair and from what I can judge so far in line with the technical specs (Music and picture viewing only), but WIFI pumps a lot of energy so be carefull . I am thinking about a second battery for travel purpose with Internet use.
Neutral opinion:
I have not used it so far for movies recording/viewing, but the short movie sample which comes with the engine gives a very sharp image.
Negative opinion:
Lots of options , cables, docking stations, ... and I do not quite understand the design of 3 different stations (all 3 would cost you nearly 200 € / 300$...) unless specifically for that very reason to make you spent an additional "few" $ ......
Combersome set up of the various cables and you need a Uhaul to carry the all necessary wires since you always wonder if you choose the right on.
Additional battery, as I said is not helping the weight of the fulle set you may need to cary in your briefcase.
Main concern and disappintment so far, is its uncompatibility with my camera (Canon 20d) which apparently cannot be recognized as a mass driver by the 604 (I am still checking with Canon on that one) because of an unappropriate transfer protocole. I knew in the first place that viewing RAW pictures was not possible and I did acccept the principle, although it may become an issueto me. in the long run
Conclusion:
I hesitated quite for some time between IPOD/Vosonic 8360/ Zen Vision W and Archos.
Quality wise I do not regret the decision, but the lack of picture down load makes it a real issue, so I wonder for the next 3 days if I am sending the all thing back and get the Vosonic which fullfills the all requirement s probably to the expense of screen quality, manufacturing standards and obviously WIFI/internet capabilities.
Things do not come the easy way in this wolrd !!
cheers