DynamicDNS library

デバイスのIPアドレスを、DynamicDNSサービスプロバイダに通知するための、.NET Compact Framework 2.0以降用のライブラリが公開されているそうです。
(情報元：Neil Cowburn)

Project Description
This library contains functionality for updating different dynamic DNS Providers like for example DynDNS.org and NoIP. The library is compatible with the .NET Compact Framework 2.0 and higher.

Background
There are differents solutions on the market to "push" data to mobile devices. Taking a deeper look in most cases this "push" is a some type of a device driven long running function. To achieve a real push some type of adressing has to take place to contact a mobile device. Therefore a standarized system shall be used. Additionally to cope with the fact that mobile connections get assigned dynamic IPs providers offering Dynamic DNS entries seem to be the right choice to solve the described problem.

とりあえず、へ〜ということで(ぉぃ

ただ、情報元のNeil Cowburnのエントリーの最後で

This is a great idea, but it should be mentioned that a number of mobile operators do not provide port forwarding and some are even transitioning their networks from IPv4 to IPv6. In both these scenarios, using dynamic DNS as a reliable addressing system will not work.

と書かれているように、ネットワークのことを考えると、実際に利用できるケースというのは、ちょっと限られてしまうのかもしれません。