Here are some links:

1. Solar panel: http://www.campinggeardepot.com/stor..._40419406.html

2. USB charging cable for N8x0: http://cgi.ebay.com/USB-Charger-Cabl...QQcmdZViewItem

3. Sample Li rechargeable battery charger: http://cgi.ebay.com/4-x-CR123A-CR123...QQcmdZViewItem

The one I bought had a 12 volt cigarette adapter. You will need to get a charger for the batteries you will use as your charge bank for the solar cell array. I used the CR123 for a Fenix LED flashlight (great flashlight) https://www.fenix-store.com/product_...roducts_id=363 (215 lumens in a 1.7 oz package, lol).

3. Minty Boost: http://www.ladyada.net/make/mintyboost/. Don't really recommend this since mA out is only 250 mA, but thats what I use to trickle charge things via USB. I have it hacked to accept 2 parallel CR123s. Depending on the type of batteries you use, you can make a usb charger to trickle charge the N8x0. This is just to use stored power from the CR123's and increase the run time of the N8x0.

4. Boxwave combo 110/220, cigarette lighter USB charger, up to 1A (nice):
http://www.boxwave.com/products/vers...rpro/index.htm You can direct connect this to the Nokia N8x0 with the usb charging cable. The Boxwave has a variable 12 to 24V input which is enough to handle the voltage from the solar panel. mA will be variable depending on the sunlight. The solar panel has a one way circuit so it won't dissipate the battery.

5. Radio Shack microusb hub: http://www.radioshack.com/product/in...entPage=search

This thing sort of works, but I can't get my Western Digital usb powered hard drive, but I think its the hard drive since even with a desktop hub with a 2.5A power supply, it wouldn't recognize. Hard to say though. This works for a wifi packet injecting capable usb wifi card. It has a Y power cable that can be attached to an external female usb battery power supply for you mobile pen testers.

6. Bluetooth GPS: Here is a good cheap source of Bluetooth GPS:

http://www.buygpsnow.com/bluetooth-gps_9.aspx

7. Cheap SDHC 16 gb: http://www.newegg.com/Product/Produc...5334&name=16GB

Why did I buy a N800 over a N810?

I was able to get the N800 for $182 landed. It has 2 SDHC slots. N810 has 1 miniSD. Presently there are no super cheap 16 gb miniSD cards. At Newegg, a 16 gb SDHC AData card is $65 landed.

The onboard software keyboard is good (some slight bugs but easy workarounds). The N800 has a metal case so its more robust. I have an 8 oz. 32 gb linux microcomputer for $320. When the SDHC go up in capacity I'll always have SDHC x 2 (64 gb when 32 gb cards get cheaper). The Bluetooth GPS units have better sensitivity than the one on the N810 so I decided against getting the N810.

The N810 gps and keyboard wasn't worth sacrificing the dual SDHC slots on the N800, but its just my preference to have as much accessible memory. On my internal card I have my Maemo Mapper file (2 gb!), KDE installation, 10 gb of music, plus an additional 4 gb for storage. I also have another 8 gb of music and 8 gb of movies on my external card. Also the N800 are dirt cheap now.