lnewton,
Your description of how you want to use your PDA sounds very much like what I was looking for when I got my PDA. I looked at a lot of programs and found some that did something close to what you are wanting. However, in researching the various programs they all seemed to have a similar flaw. When you activesync your PDA version with information that you have changed it would overwrite what was on my computer with the information from the PDA. There was no way to change data back.
If it turns out the data was wrong in someway, you may have changed good data to bad data. That is why I chose not to go the route you are describing. Although it would have been very helpful at times. I instead wrote notes in notepad and saved the file. Then I could print out the data I gathered and compare the new data with the old. This way I could add what needed to be added and compare my citations and sources. It was troublesome at times but I knew I wouldn't accidently change something I shouldn't change.
I should point out that that was 3 years ago and before I started using TMG. I am not currently up to date on whether or not the PDA programs will allow you to cite sources and compare data before changes are made to your database. I would suggest that any data being input from a PDA be imported into a holding project and then exported to your main project only after comparing them. Something like a merge function. This would allow you to use the multiply projects abilities of TMG.
I like the idea of using my PDA when researching and not having to re-enter everything when I get back home. TMG's ability to have multiple tags might help with the overwrite problems. It would be interesting to see if the bugs could be worked out.
