Can we ask user for credit card number or paypal details,store credit card number on our server, can we use SSL in iphone application for transaction?

Can we get credit card number from user or Paypal details & use them for premium service of our application ?

Does apple accept this application if we directly get this information & use it in our api on server for transaction? Will using SSL be accepted by apple ?

I have checked from 1) https://stackoverflow.com/questions/1763306/credit-card-purchase-of-physical-goods-via-an-iphone-application

2) Receiving payments trough PayPal and Credit Card

3) Using the PayPal API in an iPhone application

but not clear about all...

PayPal will not give you your customer's credit card information. The customer might not even have paid with a credit card -- they could have used PayPal balance, eCheck, etc.

You can use PayPal IPN to get information about a transaction.

As far as I understand it isn't 100% clear. If you'll sell music or additional levels, or some additional item in the game - Apple will reject it. Because for this cases there is In-App purchase.

If you sell something like flight tickets - it won't be a problem. AFAIK paypla provides an API, and there are few APIs wich allows you to process Credit Crads without Paypal.