After 2 years of playing with all kind of apps for s60v5,like Spb shell,vmenu and similar,it wasn't hard to see that low RAM of Nokia 5800 just can't wotk fluently with these apps.And batterry life is soo short...Anyway,I'm using now custom version of firmware 51.0.006.There are a lot of videos about upgrading 5800XM to 60.0. firmware even to Symbian ANna(which is less likely),so can you share your expreriences,which firmware do you find to be the most suitable for this phone?