Crazy8, no this one won't. If you look for a NEMA compliant serial GPS then it will. Wait Until CompUSA has the LAPTOP version of Rand McNally on sale. I picked one up for $70 bucks last time. It has a serial GPS and the Rand McNally Palm Software with it. Though it doesn't really say that on the box. From what I could tell, its the exact same thing as the Other Package with GPS they sell for $10 more.
Then just take a serial Hot Sync cable to connect it to the GPS. Or the Cradle. I like the Atlas software for the Palm. It can import any BMP to be your map file. You can find it at PalmGear.com.
If you're using a V series, the only way to get a serial cable is through the Travel Kit. I got mine from MobShop when they were still Accompany with the Coupons for $15, dont think you can do that anymore.
Then to power the unit, I took a 2 AA holder and attached a PS2 plug to it. Use that to connect to the PS2 power connector on the GPS. You can figure out the 2 pins you need by searching for PS2 pinouts on the net.
Even more Edit
Actually, I might have to take that back. If you get the Serial Port Version of the Sony Etak, you might be able to make it work with a Palm.
Even though the Sony Serial DOES NOT output NEMA sentences, from what I remember, it uses the Rockwell (Jupiter?) chipset. If that is correct, then its the same chipset the Delorme Unit uses. And if it is so, if you search the net, there is a guy that sells a translator from this Binary Format to NEMA sentences.
Its just a dongle like device. He wrote a PIC micro controller translator. It goes inline with the serial connector to translate the Delorme Binary Format to NEMA format. Its only about $20. If you can find it, you might email him and ask if it will work with the Sony Etak.