I stumble upon Springpad sometime ago. It was on some discussion on some forum (probably stackoverflow, it's a bit hazy now) about programmer's notebook. It was hard to really pinpoint the usage of it for me initially since it's feature is all over the place. I can't really describe what it is personally, you just have to try it yourself to really get the feel of it. It's a mix of Evernote, Pinterest and probably several other cloud-services.
I tried to use it for several purpose some which does not seems to fit well. In the end I settle with using it for more collecting-related purposes. It is a great tool to collect things on the fly. On GTD space it is great for Inbox and Someday/Maybe stuff. I migrated my Waiting-For list to it also since it has a good list item support. Here's the highlight of it's features that relevant for my usage :
- Flexible views. You can see the items using several different layout : cards, list, custom. If you are an Evernote's user, you might find some visuals quite interesting compare to it, at least visually
- Notebook and Tagging organization
- Great iOS mobile client feature-wise although still quite buggy in term of stability
- Interesting collecting workflow. Saving books, movies and other stuff is actually fun
Comes Evernote to the rescue. I am not a newcomer with Evernote, it's just that somehow I prefer OneNote style of note-taking (on iMac I settle with Growly that has the closest workflow with OneNote) so I am not actively using it. I have been thinking about porting the note-taking business to the cloud though and it seems a good time to do so. Not much needed to say when related to cloud-based note app since currently Evernote is the de-facto standard. I need to adjust my system though since it only has limited notebook number allowed and the organization seems to center around tagging (I think I am gonna miss OneNote a lot due to this).
So, the serious note matters are on Evernote while Springpad note system currently only useful for basic notes for me. I might switch fully to Springpad if it has a comparable note feature (accross multiple device that is). Until then, having to switch between the two is bearable considering the usefulness.