Now that Google has folded the Android Market into the Play marketplace there are a few more payment options. Start by going to the related link and looking up the latest payment options. At the time of this writing (June 2012) those options are in the related link.
You may also want to consider a pre-paid credit card, many brands are available at retail stores like Walmart and major grocery store chains.
You do not need a credit card to go to the android market. You do need need a credit card if you want to buy paid apps. You do not need a credit card for free apps.
Yes that is the default way of buying apps on Android Market. If you are on contract it will be charged at the end of the month
At the moment the only way to buy apps is with a credit card.
No, Android Market apps are only for Android phones. For an iPod Touch, you would have to use apps from the iTunes Store.
You can find them on the android market under the free section. This will allow you to find the top free apps for your latest android phone. This is how I find the best android apps.
You go to the android market
There is no exact figure available on Internet to know the exact number of android apps but according a professional estimate there are 3,75000 apps available on android market. In August it is expected that android market will be having more than 4,00000 apps.
Obviously, The best place to for android apps is android market place. The official platform to download every app of android but not those which were suspended because for violating rules. Many good apps were suspended from Android market just because of policy issues even people liked those apps a lot but still they did it. On the whole one can find more than 85% android apps on Android market place.
Android jailbreak
Google play or android market
Android market place (market.android.com)
they say about over 50,000 apps