You know what dealing with tech support is like, especially via email. It's like pulling teeth to get anything useful. You really need to ask only one question at a time in simple, one-syllable words and short sentences.
Here's what I got about the maps:
Dear Ken,
Thank you for contacting Garmin International.
To get the latest version of maps for the software only package you would have to purchase the software with the latest version of maps. If you were to re-purchase the Garmin Mobile PC software only disk you will receive the latest version of the maps.
I asked how I could tell if I was going to get a copy of Mobile PC with the 2010 maps (part number hasn't changed). Here's what I got:
Dear Ken,
Thank you for contacting Garmin International.
If you order the disk from us you will receive the latest version of maps. We have software updates available to fix any bugs in the program. You can download the software update on our website free of charge.
I pointed out that the latest version on the update page is still 5.00.60 and that's the version I was running when I reported most of the bugs I've reported. Here's what I got about the program update:
Dear Ken,
Thank you for contacting Garmin International.
The next version will be able before the end of the year.
I know it's not a lot of information but I was pleasantly surprised at straight simple answers rather than the usual dancing you get. I wonder what answers I would get if I phone and talk to someone else? .... hmmmm.... It's supposed to be raining tomorrow. Maybe I'll fill my mug and give them a call.
As far as updates for the hardware versions, the maps are unlocked to the GPS receiver so I assume you can buy a map update as soon as it's released.
I'm pretty sure it's cheaper to buy a new version of Mobile PC software-only than it is to buy the City Navigator map update. It's $59.99 for a copy of Mobile PC software-only. Last time I got a City Navigator update (2009 version) for my iQue it was $75.
EDIT: For the benefit of those who think they might be getting cheated because the map update product is more expensive than a new copy of Mobile PC complete with up to date maps, you're not. It's two different things. The City Navigator map update comes on DVD and includes the Mapsource program and a set of maps that you can use with Mapsource for much better trip planning than you can do in Mobile PC. Mapsource has loads of other handy features as well. You can't do a lot of that stuff in Mobile PC or can't do it as easily. And if you already have Mapsource installed you cannot use the Mobile PC precompiled maps with it.
...ken...