just ordered a Bluetake BT-510 will be here a couple days...like it b/c it is wider than the iogear 800DPI i just got.
i had thought about the BT500, but it didn't have rechargeable batteries and usb cable charger. only one store i know that has the BT-510 in right now and that iswww.spacecentersystems.com
9 left since i bought one...hehehe
the other retailers are pre-ordering for it and should be available in about 2 weeks.
both iogear and bt510 have usb charger cable, rechargable batteries, on/off switch, 800DPI.
the iogear is nice, but about a inch narrower than i would like. i am still on the first charge, so i don't know how long it will last, but i will say that if you don't use it for a while, it takes about a second for it to repower up if you want to call it that (i.e. the cursor and the mouse resynch fully after a second). I used the iogear for 7 hours last night and have been using it for the past 3 hours...i think it has good life. i will know about the bt-510 to see if it has better performance than the bt-500 when i get it
the toshiba SDIO didn't work (see my long rant and review under "bluetooth error"). I have a 3com (also listed under "bluetooth error") bluetooth pc card that is going to arrive in the next few days. i hate the dongle thing as well so i'm going to find something that will work on the 700m that doesn't entail something sticking out. i chose the 3com, b/c it is flush to the side when the card is in the pc slot. others stick out which i don't like, b/c i don't want to have to take it out and reinsert. I thought about the Zoom 4312, but it too sticks out just a tiny bit for some apparent reason.