There is a know bug on Memonote Mac 1.2.1 for sync with dropbox. Please upgrade to Memonote 1.2.2 and do the following stop if you got sync problem.
Step 1, Stop sync on all device (Both Mac and iPhone).
Step 2, Move ~/Dropbox/Notes.memonote to another place(for backup) or delete it.
Step 3: Start dropbox sync on Mac, and start sync on other device 5-10 minutes later.
Memonote 1.2.2 released with Apple Script support. So it’s easy to add any text you want to remember to Memonote with a keyboard shortcuts.
1: Open /Application/Automator, Choose “Service” at the beginning.
2: Choose Service receives selected “Text” in “amy application”. and drag “Run AppleScript” to the empty place under the top filter bar.

3: Copy the following code to AppleScript field.
on run {input, parameters}
tell application "Memonote"
set txt to input as text
save note with txt
end tell
return input
end run

4: File/Save and input “Send to Memonote” as service name.
Now you can save any text from any application to Memonote under Service menu: Select any text you want to save to Memonote and use Appname/Service/Save to Memonote.
Advance Tips: We can add keyboard shortcut for this feature.
Step 1: Open System Preferences/Keyboard/Keyboard Shortcuts/Services/.
Step 2: Find “Save to Memonote” under Text section. Click none on the right place, and choose a shortcuts you like with keyboard. It’s done.

So, you can add any text to Memonote simple use one keyboard shortcuts. Collect note for remember was never such easy before.
Enjoy the new cool feature. Let us know what you want in Memonte and see what we can do for you.
As you may be aware, Apple recently began enforcing sandboxing rules on programs in the App Store, including all of Many Tricks’ App Store applications. As a buyer, or prospective buyer, of our App Store programs, we felt it important to let you know how this affects each of our App Store applications.
We already add Sandboxing for Memonote Mac. There are some changes after sandboxing:
1) The notes data is no longer in ~/Library/Menonote (or Card Note), all data relate to Memonote move to ~/Library/Containers/co.quwei.cardnote/ based on sandbox rules.
2) Choose dropbox folder manually when enable dropbox sync. The folder path should looks like: /Users/jack/Dropbox (end with Dropbox). Otherwise, Memonote cannot save notes data in your dropbox folder.
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The result was fascinating: on the multitasking runs, people were perfectly good at making predictions on the fly, but couldn’t then explain the underlying patterns, or apply them flexibly in other contexts. The technical term for this is that their “declarative learning” was stunted by the distraction. In short, multitaskers seem competent at the time but may not be taking much away from their experiences.
One thing at a time is best. The exception, I suppose, is if you’d rather not remember what you’re supposed to be doing.
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http://www.ftchinese.com/story/001036457/en
You can’t possibly remember everything, so make sure you give your brain important things to do – and don’t overload it with “waste.” The “garbage in, garbage out” philosophy works well here.