[OSGeo-Discuss] Remote routing solutions

[Mateusz Loskot]

Folks,

May I kindly ask for a bit of brainstorming about
available and programmatically callable,
optionally usable,
optionally effective,
optionally robust
solutions of remote routing services?

The use case is very simple:
1) client is a non-Web thin client
2) client has access to the Internet
3) client knows two locations "start" and "destination"
4) client wants to know how to travel from start to destination

What are available options to achieve that? Where if availability means:
* accessible for public
* free of charge
* does not require to sign anything,

Custom solutions built on OGC-enabled stack (e.g. PyWPS, etc.) is also
an option to discuss.

Any input greatly appreciated.

Best regards,
-- 
Mateusz Loskot, http://mateusz.loskot.net
Charter Member of OSGeo, http://osgeo.org