Found this somewhere on the intertubes…

alt+nmll @ home screen - Change the network signal status bar from graphical indicator to numerical indicator and back
alt + lglg @ home screen - show event log
alt + thmn @ any menu - no theme
alt + cnfg @ enterprise activation email field - Enterprise Activation Settings for Enterprise Activationalt + eace/ alt + shift + h @ home screen - device info
alt + right shift + del - soft reset


http://forums.crackberry.com/f83/available-keyboard-short-cuts-78665/

Address Book

ALT-VALD In address book list Validate the data structure and look for inconsistencies

ALT-RBLD In address book list Force a data structure rebuild

Browser

ALT-RBVS Any HTML/WML webpage View web page source code

Calendar

ALT+VIEW Inside any Calendar item Show extra info for a Calendar event

SYNC Calendar app>Options Enable Calendar slow sync

RSET Calendar app>Options Will prompt for a reload of the calendar from the BES

RCFG Calendar app>Options Request BES configuration

SCFG Calendar app>Options Send device configuration

DCFG Calendar app>Options Get CICAL configuration

SUPD Calendar app>Options Enable detailed Cal. report for backup

SUPS Calendar app>Options Disable detailed Cal. report for backup

SUPN Calendar app>Options Disable Cal. report database

LUID Calendar app>Options Enable view by UID

SRSL Calendar app>Options Show Reminder status log

Messaging

ALT + V I E W For messages, displays the RefId and FolderId for that particular message. For PIM items, displays only the RefId.

Search Application

ALT-ADVM Search Application Enabled Advanced Global Search

MMS

MMSC Options -> MMS Show MMS hidden options

Home Screen

ALT-JKVV Home Screen Display cause of PDP reject

ALT + CAP + H Home screen Displays the Help Me screen

ALT + E A C E Home screen Displays the Help Me screen

ALT + E S C R Home Screen Displays the Help Me screen

ALT + N M L L Home screen Switches the signal strength from bars to a numeric value.

ALT + L G L G Home screen Displays the Java™ event log.

WLAN

ALT-SMON WLAN wizard screen Enable simulated Wizard mode

ALT-SMOF WLAN wizard screen Disable simulated Wizard mode

Theme

ALT-THMN Any menu Change to no theme (B&W)

ALT-THMD Any menu Change to default theme

Date/Time

LOLO Options -> Date/Time Show Network time values

SIM CARD

MEPD Options>Advanced options>SIM card Display MEP info

MEP1 Options>Advanced options>SIM card Disable SIM personalization

MEP2 Options>Advanced options>SIM card Disable Network personalization

MEP3 Options>Advanced options>SIM card Disable Network subset personalization

MEP4 Options>Advanced options>SIM card Disable Service provider personalization

MEP5 Options>Advanced options>SIM card Disable Corporate personalization

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Test Procedure
To perform a test using the hardware diagnostic tool on the BlackBerry smartphone, complete the following steps:

On the Home screen on the BlackBerry smartphone, Select Options / Status.
On the Status screen, TYPE test.
Note: On BlackBerry smartphones that support SureType® technology, use the multi-tap input method.
From the menu on the Device Self Test Application screen, select Start.
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