The short answer to this is no, ArcPad is not supported on Android or iOS. The following documentation states that "ArcPad 10.0 supports the following Windows operating systems: Windows 7, Vista, XP, and Windows Mobile." It also states that "ArcPad supports Windows Mobile 5 through to 6.5. ArcPad supports the Pocket PC and Pocket PC Phone Edition form factors�??it does not support the Smartphone form factor."
For more information on this, the link that provided this information is listed below. I hope this answers your question.