Building upon redesigned version 5.0, Foursquare has updated its iOS app (sorry, Android users, our guess is that you're coming up next). The refresh provides a number of cosmetic changes, including a tighter check-in screen that omits addresses in favor of a map view of your surroundings (and seems to forget that we have that elongated iPhone 5 screen nowadays). We also get a more robust Explore tab featuring recently opened businesses, validating the app co-founder's insistence that Foursquare is primarily a "discovery and recommendation engine." Head to the app store at the source link below to download version 5.3.5, which Foursquare duly notes is its first palindromic version number since 3.0.3. Roy, am I mayor?