At the risk of becoming a PR machine for 37 Signals and Backpack, they’ve come out with another interesting feature, this time an API:
Jason Fried tells me that the API will mean “developers…can now build on top of Backpack their own apps, pull Backpack data into their own systems, push data to Backpack from custom apps…” These include “Palm apps, Symbian apps, desktop apps, other web apps… dashboard Widgets for Tiger… you name it.”
“Backpack becomes a platform. Over the next few weeks we’ll see some cool stuff.” One example: Polling a Backpack page to pull book data from Amazon, where Amazon reading lists maintained in a Backpack list are turned into an aggregated list. Interesting stuff.