John: You seem to understand my thoughts, and everything you've stated is logical. You need a PIM and don't care about WiFi-VOIP, and are satisfied with the lower resolution screen, and smaller LCD of the G1. My buddy who just bought the G1 is feeling remorse because it wasn't clear to him that he would lose VOIP....something he enjoyed with his previous HTC device.

This thread is valuable to those trying to decide what device may suit their needs better. If it is Personal Media Player, WiFi VOIP communicator, the choice is clear. For business use I agree with your reasons to switch as you have.

BTW- much is mentioned about the N8xx Skype, and N8xx Gizmo (plus Gizmo for those of us fortunate to have GrandCentral's free beta Click2Call), but not so much is discussed regarding other VOIP providers and the N8xx. I have been pleased with WebaCall and the one point one cent a minute (USA) pay as you go on my N800. I use WebaCall if I have to drill into an automated system requiring DTMF because GrandCentral's Click2Call blocks DTMF. I can also use MagicJack on my N800 for this purpose but it is quirky with registration (but it works). Skype is also an option when I require DTMF out, at two point one cents a minute.

The way I use my NiT, the T-Mobile/HTC G1 would not be the device for me at this time.

The things I have in my gadget bag are the N800 (N800=almost exactly a year old now), a ext. Bluetooth GPS rcvr, and either an unlocked AT&T 8525 GSM (w/Schap's ROM) with T-Mobile (Gold Rewards prepaid) or I'll stick my SIM into a small GSM flip phone. I personally don't need the keyboard found on the N810 (nor the int. GPS), I much rather have the two SD card slots and the pop-out camera of the N800 with BT ext. GPS. I know this isn't what other people feel but it suits me extremely well. I made a Mini-B USB to full USB (with strapped OTG Host trigger in hardware) so I can use an ext. mechanical USB keyboard with the N800 but I rarely use it for that. More often I use the USB OTG host adapter for reading and writing to USB flash drives.

As I have stated in other threads here, I am fortunate that most of the places I go to when I am away from home or work all have free WiFi, so I get maximum utility from my NiT this way. If this weren't the case I would have never switched to the T-Mobile Pay As You Go deal. GrandCentral's Click2Call and the abundance of WiFi where I travel with my N800 means I rarely need to use the cellphone, but I bring a cell along anyway.

John: I understand you don't have many people you can communicate with who used Skype, and you don't like the packet switched SIP VOIP. 70-80% of the people I speak to use Skype (so I do Skype to Skype often) and the voice quality is better than SIP, and better than Cell to Cell or Cell to PSTN. I guess I just have things "dialed in" (tweaked) to where the N800 is something I cannot imagine being without in my life.

John: You made a comment above regarding the need for a single contact number, a need that your cellular carrier fulfills. Google's GrandCentral service fulfills that single contact number requirement, and I use that. With GC I have the luxury of answering incoming calls on the N800, or the T-Mobile GSM phone, or any of my laptop or desktop computers regardless of where I am because they all ring simultaneously. If I am at home (or out in any of my many WiFi spots) I use the N800 or a computer to answer the call. If I am between Wifi hotspots I can answer the call on the cheap GSM. Callers only need to try the one number to reach me and I am not paying a cell carrier $80 a month (anymore).

Not being able to easily use the N8xx for portable VOIP means leaving a large portion of the NiT functionality untapped. Not wanting to use the N8xx for VOIP (by choice) means it is easier to part with it.