In no order, while I wait for reload again...
- Block Explorer - maybe someone else can also take try at setting up a bitcoin-abe based block explorer. I am working with the securecoin-abe fork of bitcoin-abe to try to make work now but it still hits bocks it doesn't like and bombs out updating database. Should probably have another independent one running as backup anyway. Warning: You will pull hair out and be bald doing this. It is extremely time consuming. It can be sorted but require hacking Python scripts and some mysql knowledge.
- Android Wallet. Fork the bitcoin wallet on github and adapt for Particle. May need special tweaks for quark based algorithm. Maybe there is another fork to look at, have to do some research around github and look. Should be pretty easy. You'll need developer account with google to publish to Play Store.
- paper wallet
- reddit tip bot? would anyone use it? I don't ever see anybody on the reddit.
- If you're .net/c# developer, start looking at things like Hive to get ideas for app plugins
https://www.hivewallet.com/- "App Store" - start thinking of graphic design/theme for this, if you know ASP.Net/MVC3 or 4 and have worked with MongoDB etc. that would be nice, we can setup a github for the back end. The app store model is like the ubuntu launchpad. The idea I had was that it would not store apps directly, but act as a directory with pointers to wherever the plugin file is hosted. REST interface to be consume by wallet for searching directory. I thought it would be nice if it acted in P2P way and could also both send a list of other known repositories and accept peer updates of repositories. So then the wallet doesn't need to know where all the app stores are at the beginning, it can sync and discover them and display a list for user to choose from. This should be clean and simple. We could build support later maybe to host the files on Amazon S3 or something like this, but gets expensive so lets start with free way ;-) You can look at AppHarbor, I believe they support a free tier for open source projects.
- social media / awareness / community building - everybody is generally quiet and not creating too much buzz, etc. Tried to direct people to central place on the bitparticle forum but did not work out too well nobody participate. reddit, twitter, etc. blog posts.
- write guides, articles and posts for website for content marketing
- some cool infographics would be nice
- vote on mintpal
thats just brain dump from me, but i'm sure others here have ideas too... run with it so I can focus on getting the QT update out and core code done