A new jailbreak tweak dubbed iReminder by iOS developer greensnow will let you place any reminders of your choice on the lock screen. These reminders are fully customizable in appearance and can be changed or removed at any time.
iReminder lets you add up to fifteen different reminders to your lock screen at once. From the preferences pane, which appears in your Settings application after you install iReminder from Cydia, you can set the text size, color, and font. The list of fonts includes 184 different kinds and there are thirteen different colors. The text size is changed with a slider. If you’re using an iPhone or iPod touch, you will need to turn on the ‘iPhone Version’ switch. The settings are shown below:
If you end up having all fifteen reminder slots filled with text, they won’t all appear on the lock screen’s empty space because there isn’t enough room. Instead, a scroll bar will indicate to you that you can scroll up and down through your reminders.
In terms of cosmetic appearance, iReminder might look better as an iOS-style notification bubble instead of just free-floating text on the lock screen. In terms of functionality, it offers great personalization, which anyone with a taste for making their iDevice stand out among others will love.
If you are interested in the iReminder Cydia tweak you can find it through the ModMyi repo for $1.00.