allow me to organize the budget for my trip - may be showing on what activity i spend to much comparing to average spent per location, type of accommodation.. and where i'm doing good - (taking inspiration from Trulia info db on accommodation prices...)

calendar or list linking all booked or scheduled travel, accommodation, dining, entertainment all together - with a “recommender” service feed from touristr (and other) site(s) for all gaps in the schedule – places to eat, see etc to fill your schedule.

a section for 'deals & coupons' for locations.

daily current weather update, and 5-day forecast for each location on my planner – link to weatherchannel or yahoo api

with Rate of Exchange for currency for each location on my planner – link to xe.com api

RSS Feeder with default options for good content rich travel orientated sites with specific reeds for locations - Restaurant, Shopping, Events, - default options provided related to locations e.g. entertainment.ie for Ireland etc

Ability to print off an itinerary with phone numbers for each attraction/accommodation pinned to it.

allow friends or family to collaborate on the trip - showing everyone's input clearly

like 37signals “Basecamp” type of organiser tool for trip planning - real assistance on making lists and tracking “planning” activities. Its all about things to do, and getting them done…….before the off.

Can I just drive to where I wanna go? Do I have to take a plane, a train, maybe both of them? I think that would be nice to have TRANSPORTATION icons for each place added. I mean, the user should be able to add a form of transportation to that particular place.

Public Front to show off where I've been and what I've done. Flights I've taken, roads I've driven. allowing to add photos and comments after the trip.

allow me to show my flickr photos on my trip, add my trip to dopplr, share my trip on facebook, digg trips on digg...
I don't need another social network but i need a trip planning tool that talks to my existing apps!

ask a question about a trip, a destination to someone who has been on a trip.

practical info on the country/destination visited - this changes depending which country of origin you are from