I use Quicksilver with the RTM plugin for this. Works great. One of the reason's I chose RTM as my GTD manager. All I do is hit command+space, period, type the task, tab, type task, hit enter. Sends it straight to my inbox. And quicksilver is not only free, it is the single best mac app out there, so there is no reason not to grab it.

http://www.blacktree.com

This works great. Thanks!!

Indeed, Quicksilver integration is the main reason I use RTM (RTM's astonishing breadth of availability is the other); the ability to create new tasks in a few keystrokes, without leaving whatever app I'm in, is crucial to my remaining on-task and productive.

I use the Milk the Cow "Skim" widget, which is just text box for adding tasks to RTM.
http://code.google.com/p/milkthecow/

Works perfectly and allows for contextual commands like due date and tags.

Any know if there is something to use with Launchbar?

Or if you can convert the Quicksilver RTM for launchbar?

Not happy with the Quicksilver solution, too many keystrokes. Compare for example with Things on the Mac, command-space, type task, hit enter. Also, do not like the "receipt popup", is there a way to switch it off? Any other suggestions? If not, I will need to make one..

Update: Together with a simple GUI applescript, a widget actually works very well. I am now only 1 click away from RTM/Mac bliss..

The Milk the Cow Skim widget is quite nice for quick entry. It's definitely faster than using Quicksilver.

I'd love to see the MTC developer add a couple more input areas, like the quick entry widgets for Things and Omnifocus. That would make for a perfect OSX solution for quick entry.

I've gotten the Launchbar Twitter/RTM script working...
I really do prefer it over anything else, even the widget. It just seems to flow much better for my workflow..

I see that you can define time and date, but is there a way to define tags, locations, and even notes? would be perfect

I'd love to see an equivalent of the ToodleAir (Adobe Air app for Toodledo) that works for RTM. This is a great little tool, and although I've looked at Toodledo a fair bit, I still love RTM best.

A little quick add tool like this for RTM would rule. But I'm no coder :(

Anyone fancy giving it a shot?

@nordlys: yes, adding tasks to RTM via QS is slower than with Things, but we can't really compare the two. Via QS you are posting task to the internet, alas with Things you're entering it into the local database.

I love Things for its quick add feature, and I was a big fan of the app back in the day, but now Cultured Code just seems to be lagging behind in terms of features (they promised sync over web quite some time ago, I grew tired waiting for it, but then I found RTM). Also their iPhone app is suboptimal (still no landscape mode). So now I'm using both: Things for quickly noting ideas, and RTM for organizing to-do lists.

A OSX native RTM desktop app (with quick add feature as in Things) and sync to the web would speed things up significantly. Although I must say that I like the RTM web interface with its keyboard support. I use RTM as a Fluid app with Google Gears enabled for offline use. And @odelaney, :) let's not wish for another Adobe Air app. They are slow and clumsy, also I haven't seen a single Air app that would properly support keyboard combos (if at all).

Cheers!
Mark

At the risk of self-promoting, I made a Google Quick Search Box plugin a while back. Since Smart-Add is included in the Remember the Milk API, you can easily designate advanced properties for your task inline through the plugin.

http://github.com/gfontenot/RTM_QSB/downloads