A Taiwanese Stridanaut makes it possible to use dynamo lighting system on a Strida! 
http://www.mobile01.com/topicdetail.php?f=317&t=2380100
You can open all the pictures at once by clicking the “載入圖片” button at the right top corner of the post. 
Once again, many thanks to Amuro 
for an interesting solution which is using common parts.
The central part is actually a bottle cage holder, I mean…
…functionally identical to, for example, this one:
made by Minoura
The bottle cage mount is made by Topeak actually.
http://www.topeak.com/products/Bottle-Cages/cagemount
http://tw.myblog.yahoo.com/Skywalker-Strida/article?mid=2488&prev=2491&next=2476
Aaah, Topeak, thanks Amuro!
I knew I’ve seen the sign before.
Found recently another dynamo solution;
due to language issues no more info, sorry…
http://www.광진omk.kr/skin10/index.php
(Seems that the forum software doesn’t accept this kind of typing.)
Surely can dynamos also be used (via 5 Volt regulator) to charge any USB device