Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_10 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8E600 Safari/6533.18.5)
[edit] I would never have paid $10 for any app, so the price has gone up. I would have to compare with other apps before I would claim to be willing to pay that price now. But if no other app compares, it's worth it. [/edit]
MSecure is what I've been using. You can also set bank account info, credit cards, birthdays, email accounts, memberships, yardda yardda. you can also create your own, and add any field (text, URL, alpha-numerical, phone, email, number, username and password).
I've been using it for two years, and I haven't needed anything else.
Of course, the app, itself, requires a password to open.
The ONLY glitch I've found is that I can't get out of Search unless I reopen after killing the app.
If you get it, let me know what you think. I am in no way affiliated with anyone who has anything to do with the creation of this app. Its just one of my favorites, and I want to share it with others.