Dropbox has became an indispensable web development tool for me. It lets you share and sync files across multiple computers - your desktop, laptop, and netbook. It also keeps a history of your edits, like google docs. I use it as a poor man's svn to keep track of my edits to pages on Wopular, in addition to syncing design comps, and to-do lists. Since I already use my HD2 to pick stores to feature on the site, I thought wouldn't it be nice if I could also do some coding with it. In order to do that I would need to access my files in Drop Box from the phone.
Dropbox has an app for the iPhone and are building one for Android devices, but is skipping Windows Mobile 6.5 because of the upcoming Windows Mobile 7. Microsoft pretty much screwed all current Windows Mobile users by saying that WM7 will not be backwards compatible - i.e. it won't run apps from previous versions. This pretty much stops most developers from creating software for current WM users, and I'm finally seeing that statement rear its ugly head with Dropbox.
Fortunately, an independent startup saw an opportunity and started building one for us neglected WM users. The app is Cloud Files, and the company is Ruttensoft. It's now in closed beta. You can sign up for a beta by going to their site.
I've started testing it out for a little bit. The design has a homegrown look-and-feel. It's pretty good, not amateurish, but also not slick and shiny. I've used it briefly for about 20 minutes when I first installed it and had it crash on me twice when the phone was on the Lock screen. However, I used it again a couple days later and experienced no crashes. Maybe it has something to do the lock screen. The app feels more like a ftp program than a sharing and syncing program, which is good enough for what I wanna do with it. I'll mostly be updating code and text with it. It has an internal text editor that allows you to edit the file directly from your Dropbox account. You can also upload/download/move/delete files and folders like an ftp program. The icons and text are nice and big, so it's finger-friendly. Overall, it's not bad. All I wanted was the ability to ftp to my Dropbox account from my HD2 anyway, and this gets the job done nicely.