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== HTC P3470 (Pharos) ==

I've recently bought a HTC P3470 (Pharos) smartphone / PDA. This device combines combines mobile phone, satnav, and organiser functionality. However, the jack of all trades is a master of none... there are things that remain to be wished for. My current unresolved issues include:

* File transfer: I can use the <code>obexftp</code> program to transfer any file via Bluetooth from my Linux laptop to the P3470. However, getting files doesn't work, unless the files are <code>.vcf</code> or <code>.vcx</code> files.
* GPS logging: I'd like to create traces of my movements with GPS, e.g. to contribute to the [http://www.openstreetmap.org/ Open Street Map project]. However, I haven't found an application that works reasonably.

Probably I could have spared myself from these troubles by getting a Freerunner from [http://www.openmoko.com/ openmoko]. I'll seriously consider that if they release a model with GPS.

== Setting up Bluetooth on Linux (Debian) ==

My main interest in bluetooth is for file transfer, I haven't tried using a mobile phone as a modem (for accessing the Internet), or as a speaker / headset etc. Setting up Bluetooth was relatively straightforward for me:
* get a USB Bluetooth dongle
* Debian packages I've installed and which I think are required to use Bluetooth:
** <code>bluetooth</code>
** <code>bluez-hcidump</code>
** <code>bluez-utils</code>
** <code>libbluetooth2</code>
* run <code>tail -f /var/log/messages </code>and connect the dongle to the computer. The message <code>usbcore: registered new interface driver hci_usb</code> indicates that the dongle has been recognised correctly.
* turn on Bluetooth on the mobile device, and make the device discoverable (on the HTC P3470, go to Settings -> Connections -> Bluetooth -> Mode for this). Then, run <code>hcitool scan</code> to find out the MAC address of the device.
* Debian specific: Compile the passkey agent, provided in <code>/usr/share/doc/bluez-utils/examples</code>. I've put the compiled program in <code>/usr/local/bin</code> for convenience. Then, run <code>passkey-agent --default <var>some key</var></code>.
** The bluetooth subsystem must be up for the <code>passkey-agent</code> to work.
** The passkey agent is necessary to establish the first connection, but it may not be necessary subsequently.
* If the device allows file transfer (on the HTC P3470, use Settings -> Connections -> Bluetooth -> FTP), you can use <code>obexftp</code> to list files on the mobile and to transfer files -- if the mobile device cooperates. (The HTC P3470 doesn't, see above).

=== Bluetooth File Transfer ===

Files can be "pushed" from the HTC P3470 to the Linux box by running
  hciconfig hci0 piscan
  obexpushd -B
on the Linux box, and then choosing to "beam" the file.