Google Maps for Android comes to mind. I guess "top tier" on a mobile phone is still in the tens of dollars right now, but I haven't seen an alternative (free o

Google Maps for Android comes to mind. I guess "top tier" on a mobile phone is still in the tens of dollars right now, but I haven't seen an alternative (free or paid) that comes close. Mail and calendars are also better than anything I've found in the market...but that's maybe just my preference.