I noticed that Nokia ships its 5100 (and other devices) equipped with two different browser implementations. 5100 targeted at the US market supports xHTML whereas the EU version does not.
I assume this is because the 5100 was launched a couple of months earlier on the European market. Is that the reason for not shipping it with a xHTML-capable browser? If so, will there be a firmware upgrade in the near future which would add this to 5100 EU models?
yes, it is true that Nokia 5100 shipping in Europe is WAP 1.2.1 compliant whereas Nokia 5100 for US markets is WAP 2.0 (XHTML Mobile Profile over TCP/IP stack). Currently there are no plans to introduce Nokia 5100 with WAP 2.0 browser to European market.