I generally agree with Garry's take on this. However, I have used tripit.com before and it's quite a nice tool. You simply email them all receipts, booking confirmations etc and it automatically gets added to your trip itinerary. However, it doesn't seem like a super successful business. The trip planning tool I need aggregates all my accommodation searches (Airbnb, VRBO etc) into a single place and includes all rele…
The article is referring more to pre-trip planning for leisure travel, which is a very popular product to build but never successful. I've seen new ones pop up each year since I started working in travel 10+ years ago, and none has ever achieved scale.
FWIW TripIt was acquired by Concur in 2011 for about $100M, so it was seen as valuable, at least to Concur, as they were able to make it part of their offering to corporate clients, which generate huge revenues for them.