Crossposting my post I've sent there:
"First, thanks for the article - it explained a lot. This question has been bugging me (along with a lot of other WinMob users) right from the introduction of AKU3 and this is why I've written a full overview & comparison of the new model on the Pocket PC Magazine Expert Blog at http://www.pocketpcmag.com/blogs/ind...;tb=1&pb=1
(also frontpaged by Pocket PC Thoughts).
It's also nice to know cell phone rebranders / manufacturers could include DUN if they wanted to. You should consider *forcing* them to include it as the lack of DUN is, in my opinion, decidedly a problem.
However, there are some things in the article I disagree with.
1. You state "Bluetooth DUN is a legacy technology that is likely to disappear over time. Especially when you look at the great experience Internet Sharing provides with Bluetooth PAN. It also does not make sense for cellular radios to continue supporting a legacy interface just to enable Bluetooth DUN. In the past we received a lot of criticism about Modem Link, especially related to usability. For this reason we decided not to include it by default."
I'd add that you don't need Modem Link (see for example my related DUN tutorials - for example the one at http://www.pocketpcmag.com/blogs/ind...;tb=1&pb=1
) for internet dial-up. This (the lack of need to do anything on the PPC for the dial-up) is a BIG advantage of the old, DUN-based approach. I use a GPRS+ connection from my notebook a LOT and found having to start internet sharing manually very tiring on the long run (this is why, finally, I've switched back to using an old, DUN-based Sony-Ericsson t68i for dial-up.)
2. PAN client is NOT supported on many platforms; therefore, I wouldn't call BT DUN a legacy technology. Microsoft BT stack on Windows Mobile (while the Broadcom BT stack, naturally, works great with the BT PAN-based connection sharing); several older (non-MS / Broadcom) BT stacks even on the desktop; the Nokia 770/800, Palm OS, older versions of Mac (fortunately, as has been also pointed out in my AKU3 article, never versions of Mac OS X already support PAN). Also, Linux can be harder to configure to use PAN than DUN (for example, on my Sharp Zaurus C760, I've never managed to make BT PAN connections work, unlike BT DUN ones).
That is, it'd be REALLY great if Microsoft DID *force* phone manufacturers to make DUN available again, if it is already available. Not an optional package but an obligatory one."