Hi,
You can try to call the url to open the record by using url like below :
http://myorg.crm.dynamics.com/main.aspx?etn=account&pagetype=entityrecord&id=%7B91330924-802A-4B0D-A900-34FD9D790829%7D
this article might be helpfull.
http://msdn.microsoft.com/en-us/library/gg328483.aspx
I am not sure how the form allignment will arrange inside iframe.
Another oprion is design a html/silverlight/html5 based on your requirement and call from iframe
Thanks,
Sebastian