Dear Mr. Automattic,
After following your instructions and reading the solution you provided to Mark de Scande, I am formally requesting that you make your plugin easier to use.
Things that caused a bit of a stumble for me are:
* after installation the menu on the left that appears as "sites" does not have an entry called "settings" which could have taken me to the "Push Syndicate Settings" page quite easily.
* What are the purposes of "site groups"? on the sites page I don't see anywhere that I can sort by "site groups" or even use them as a filter.
* why can't the settings page ask for me to set a random key right then and there and then have the plugin load the define? That would be much simpler than having someone edit any one of their numerous wp files. As such in my case while I am very experienced, I did manage to leave out a semicolon, thankfully I knew what to do to fix it in a hurry. A newb to wp would not know how to do that. Instant site breakage and your plugin will never get revisited again. :(
# as for Mark's issue, you might want to considering making a page in your plugin that is capable of manually firing the cron functions and making it visible so folks like Mark who have disabled their wp-cron can add it to their server crons instead. Like what wpematico does.
Btw, I have successfully installed and will let you know either way if it is working in a few hours.