( CNN ) -- Each February , the world 's mobile technology fanatics wait excitedly to see what will be revealed at the Mobile World Congress in Barcelona -- and this year 's event promises to be bigger than ever . As 65,000 people descend on the Fira Gran Via hoping to catch a glimpse of the latest smartphones , boasting everything from quad-core processors to high-definition screens , we 're asking readers what features they want to see on the phones of the future . Will 4G connectivity and crystal-clear smartphone cameras revolutionize your world ? Or are you holding out for holographic screens and handy `` mobile wallet '' payments ? To see what 's on the horizon , check out what industry analysts are predicting in `` 5 things to watch for at 2013 's biggest mobile-tech show '' and take a look at our gallery of some of the more far-out ideas that have been imagined already . From the simplest development to the most mind-blowing innovation , we 'd like to hear what smartphone feature you want now . Tell us in the comment section below , send us a Vine video or comment on Twitter using the hashtag # cnnfuturemobile .
The Mobile World Congress starts on 25 February in Barcelona . We have a lot of exciting things planned for the next few months and we are looking forward to sharing more details about our plans with you soon. Leave your favorite idea for a new smartphone feature in the comment section below .