thank you for sharing this module , although this is an interesting idea to have a one page checkout but i don't think the UI of this module does help with the CRO , it is kind of messy and not organized , as a client i would be confused with all those forms and choices that i have to choose in one page , if anyone have tried it and noticed an increase or decrease in their convertion rate please share with us , i personally want to know if the idea of onepage checkout is really making any diffrence.