Very valid observations, all! Behance has really created a beautiful and well thought out application. My major concern with Action Method, after months of use, is that they tend to be a tad slow at updating the software with any community requests.
You may also want to give Producteev 2 a try. I reviewed them in early June here on 40Tech and have been working with the app for the past month. So far, I’m pleased and you may find that the calendar sync feature they have solves the issue you will have with Action Method. They are also always updating and improving. I don’t believe they have a Blackberry app, but it is likely on their roadmap, and you may well be able to get the site to work in the browser.
If you choose to give Action Method the full treatment, let me know how it works out for you!