Hi,
I agree that a dummy check up front is probably the easiest and quickest way to do this also. However, there may be something else you can try. In your PreLogon Sequence, insert a new action as per normal. When the right hand pane opens with the list of inspectors you can choose from, select "New action" from the "Using" drop down list box second from the top and hit "Apply Changes". Now click on the "New Action" inspector and give it a name (like Check URI) and description and hit update. Now, to the right of your new action select the + symbol (with the ^ above and below) to allow you to insert a new rule. Give the rule a name like "development" (in your case) and for the rule enter session.network.server.land_uri == "/development" and hit "Insert rule". This should then allow you to branch the PreLogon sequence based on the landing URI (as you requested). Just a tip though, i'm not 100% sure it will be /development or just development so please play around with it to make it work for you.
Just a final tip, you can enable Session Variable Dump under Device Management -> Maintenance -> Troubleshooting Tools. What this does is allow you to see the session variables created during the logon process when the select the user account under Reports -> Logons for the purposes of troubleshooting.
Good luck!
Cheers,
Mal