diff -r 412b8db4a036 -r 4801b7adbbc5 project/scipycon/registration/models.py
--- a/project/scipycon/registration/models.py	Thu Nov 18 15:00:13 2010 +0530
+++ b/project/scipycon/registration/models.py	Thu Nov 18 15:02:40 2010 +0530
@@ -30,6 +30,7 @@
     ('Female', 'Female'),
     )
 
+
 class Wifi(base_models.ScopedBase):
     """Defines wifi options at SciPy.in
     """
@@ -39,6 +40,17 @@
     wifi = models.CharField(max_length=50, choices=WIFI_CHOICES,
                             help_text=WIFI_HELP, verbose_name="Laptop")
 
+    registration_id = models.CharField(
+        max_length=255, verbose_name="Identification Number",
+        help_text="- Provide the serial or identification number at the "
+        "back of your laptop using which your laptop can be uniquely "
+        "identified. Ex: 8BDB8FB (Service Tag on Dell Laptops).<br /> - "
+        "This is for security reasons and will be used while you enter and "
+        "leave the venue.<br /> - Please don't provide the model number "
+        "like Dell Inspiron 1545. There may be many laptops of that model "
+        "and hence your laptop cannot be uniquely identified.",
+        blank=True, null=True)
+
 
 class Accommodation(base_models.ScopedBase):
     """Defines accommodation information for SciPy.in