[HTC Sensation] director_mr:
Backup / Sync

Box.net - online storage (up to 5 gb free)

Dropbox - Lets you bring all your photos, docs, and videos anywhere. Dropbox is a free service that lets you bring all your photos, docs, and videos anywhere.

Funambol Sync - Delivers over-the-air synchronization of your personal data. Makes it easy to secure your Android pictures, videos, files, contacts and calendar in an online account and keep them in sync across your other mobile phones, tablets, and computers. Platforms supported include Android, BlackBerry, iPhone, and Symbian mobile phones, iPad and Android tablets, and Windows and Mac computers.

MyBackup Pro - The #1 backup application for Android. Secure your data with MyBackup Pro.

Titanium Backup *ROOT* - Extremely powerful backup tool, you must have root.

File Sharing / Organizing

Andftp – A usefull FTP browser and file browser.

ASTRO file manager – The file browser that did not come with your phone.

ASTRO Bluetooth add on – share files via Bluetooth.

ES File Explorer - An alternative to andftp. File copier/explorer, windows/samba networking support

File Expert - Powerful File Manager/WIFI File Transfer Web & FTP/App Manager - ALL in ONE

Folder Organizer - Group items according to labels and create customizable folders and widgets.

FTP Server - Simple & free FTP Server to transfer files to/from your android device with a FTP client. For more information visit this site

Koala File Encrypter - Helps you to encrypt private files with password. Encrypted files have extension ".spf", you can decrypt it or open it directly within this appli

*Root* Explorer (File Manager) - Root Explorer is the ultimate file manager for root users. Access the whole of android's file system (including the elusive data folder!). MUST HAVE ROOT ACCESS

Simi Folder - a Folder Widget with a horizontal/vertical scrollable Launcher.

Reference / Information

Antennas – Find where the cell towers are in your area. Kind of cool.

Barcode Scanner – Check if the prices are good at the store.

BASSWAR – check if your bass is in tune. Just a tone generator.

CoPilot Live Premium - Offline voice-guided GPS navigation

ConvertMe - Utility for converting over 100 various units of measurement (distance, area, volume, mass, temperature, and many others)

CrossConnect Bible – Free open-source Android Bible. Many different versions.

FlightBoard - Turn your Android phone into the Arrivals and Departures board for any airport in the world! FlightBoard lets you check out the boards of your favorite airports and view all the flight information in real-time.

FlightTrack - Get real-time flight status and map tracking for airline flights worldwide. The best flight tracking app out there! Track flights with beautiful, zoomable maps or get real-time departure info, delays and gate numbers at a glance.

Gas Buddy – I like finding cheap gas. This helps.

Google Earth - Google Earth for you phone

Google Goggles – Use pictures to search the web.

Google Sky Map - Point your phone at the sky, and Google Sky Map will show the stars, planets, constellations, and more to help you identify the celestial objects in view.

GSpeedo – GPS speedometer. Tracks speed and distance travelled, also G-forces.

Gstrings - a chromatic tuner app for android phones.

Guitar Scales – a list of guitar scales.

JamBox Guitar Chords & Scales - Advanced guitar chord- and scale-finder for right- and left-handed players. It shows and plays chords in different variations and can also be toggled for left-handed players.

My Tracks - My Tracks allows you to record and share your GPS tracks, including statistics. Use My Tracks while you run, bike, hike, or do anything else outdoors, and it will use the GPS sensor in your phone to record the path you took. It will also gather useful statistics such as time, speed, distance, and elevation.

Pocket Auction - Bid, search and check My eBay using the award-winning Pocket Auctions for eBay!

Rail Planner Live - UK Journey Plans, Departure Boards, Return Fares, Platforms, SMS Alerts, Widget etc Plan your train journey using actual real-time train times, platform, delay and cancellation information from National Rail Enquiries.

Run Keeper - Track your fitness activities (time, distance, etc.)

ShopSavvy – Barcode reader, price comparison app

SnowStorm – For some, htc’s sense weather app is not enough. For those people there is Snowstorm.

Sygic Navigation - Premium turn-by-turn GPS navigation app.

Talk to me Cloud – voice input translator. Capable of speaking the translation. Useful and fun!

Ulysse Gizmos - The best set of tools to help you in a travel with your Android™ phone: Compass; Speedometer; GPS status; Bubble level; Clinometer; Magnetometer; Map view; Location/waypoint address; Location/waypoint exchange;

White & YellowPages - Phone book. Cool & simple navigation.