I’ve arrived in Barcelona for a very, very busy week, spending most of my Friday alternately trying to negate jet lag, perform some company administrative tasks, and prepare for all the demonstrations we are doing at the Mobile World Congress next week.

It’s now Saturday morning and yesterday’s blue skies have been replaced by grey drizzle. I’m preparing for a two day workshop run my Exicon and the Mobile Entertainment Forum where I’ll be participating in panel sessions and having meetings with several operator groups.

I took the photograph to the left with my HTC Hero in Singapore this week; in a way having a travelling SIM collection is both a handy thing and a bit of a bugbear. There’s a point at which the economies of roaming take over and I should do everything with my Australian SIM card. However, we aren’t quite there yet – by way of example the M1 prepaid mobile broadband (at around A$5/day for unlimited data in Singapore) easily wins over any other form of mobile data (with the exception of Singapore’s excellent free WiFi service, if you’re lucky enough to have a hotel covered by a hotspot).

I’m also experimenting more and more with VoIP services, running a Barcelona local number this week to call Australia from the collection of Spanish SIM cards I’ve accumulated.

Anyway, got to run, will post more from the Mobile World Congress as it unfolds.