Got my pre-order in from electronic-cigz about a week ago. The 401 PowerPal will charge both the 401 and 402
batteries, but you'll need some small fingers with the 402 because it drops down in there quite a bit. It looks like cutting a bit of the case material away would help this greatly, but I haven't taken a blade to mine yet. Using this with 403
batteries would be impossible without altering the case.
Heaven-Gifts looks to be selling the same unit (with different branding) for $15.50. I added a few of them to my last order so I can compare them.
Edit: FYI the lid on the PowerPals I got WILL CLOSE with 401
batteries installed. Don't know about the units from Heaven-Gifts yet.