Need to view or update the Netowrk Routing  Table on your CE/ WinMo device?  Smart Device Framework 2.2's updated NetworkInformation namespace adds a whole lot of new classes, including a full set of classes for routing table access.  Here's a quick example of displaying the current routes:

IPRoutingTable table = IPRoutingTable.GetRoutingTable();

Debug.WriteLine("\r\n*IP Routing Table\r\n====================");
Debug.WriteLine(string.Format("{0}{1}{2}{3}{4}",
    "[Interface]".PadRight(16),
    "[Type]".PadRight(12),
    "[Destination]".PadLeft(17),
    "[NetMask]".PadLeft(17),
    "[Next Hop]".PadLeft(17)));

foreach (IPForwardEntry entry in table)
{
    string intfname = entry.NetworkInterface == null ? intfname = "{Loopback}" : entry.NetworkInterface.Name;
    Debug.WriteLine(string.Format("{0}{1}{2}{3}{4}",
    intfname.PadRight(16),
    entry.RouteType.ToString().PadRight(12),
    entry.Destination.ToString().PadLeft(17),
    entry.SubnetMask.ToString().PadLeft(17),
    entry.NextHop.ToString().PadLeft(17)));
}

Can't be much simpler than that.