Well my new D/I arrived Wednesday afternoon. It took a while to get activated because I work in a steel building and kept getting disconnected, Verizon was helpful on the land line to get it straightened out.
This is my first smartphone and so part of the learning experience is just getting used to the style of interace being used with these things.
On the plus side I really like the speed and logic of the OS- it is simple to organize and while I am still setting up things to duplicate/excede my old iPAQ it has taken only a short time to get things 90% there. The 'Market' free Apps is a gold mine of great stuff and I have just gone through a small portion of it. Favorite new App so far- the 'Tricorder'- it provides a great display of the D/I's internal sensors.
Now for the negatives- these are things probably well known and most have a work around (one reason I joined this forum is to learn about these things). Battery life sucks. I find it astonding that HTC released a product that requires a constant turning off and on of features just so you do not have to echarge the battery three times a day. I know they were focused on a thin case, but they went too far. Aside from the mentioned On/Offs to extend times, I just bought on eBay a 3500mA Battery & extended case for $10 (well a penny for the bid and $9.99 shipping). Until it arrives I will just deal with the power management issue.
I wish it could recognize a stylus input. I am an artist and had drawing and Photoshop programs in the iPAQ. There are programs which can do that with the D/I, but you are resorting to fingerpainting. I am still trying to find a way to get the optical sensor to reverse itself Left to Right- it is counter-intuitive to try and scroll the screen to the right by sliding your finger on the sensor to the left. I know it can be done on-screen also, but that sometimes causes Apps to launch accidently.
On the whole I am delighted with the D/I- it meets all my expectations and I am really happy I chose this unit. I hope to spend a good part of this weekend going through this forum and learning from everyone's experience.